@article{perry_thomsen_d’antonio_morse_reigner_leung_wimpey_taff_2020, title={Toward an Integrated Model of Topical, Spatial, and Temporal Scales of Research Inquiry in Park Visitor Use Management}, DOI={10.3390/su12156183}, journal={Sustainability}, author={Perry, Elizabeth E. and Thomsen, Jennifer M. and D’Antonio, Ashley L. and Morse, Wayde C. and Reigner, Nathan P. and Leung, Yu-Fai and Wimpey, Jeremy and Taff, B. Derrick}, year={2020}, month={Jul} }
 @article{smith_wilkins_leung_2019, title={Attendance trends threaten future operations of America's state park systems}, volume={116}, ISBN={0027-8424}, DOI={10.1073/pnas.1902314116}, number={26}, journal={PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA}, publisher={Proceedings of the National Academy of Sciences}, author={Smith, Jordan W. and Wilkins, Emily J. and Leung, Yu-Fai}, year={2019}, pages={12775–12780} }
 @article{guo_guo_lin_lin_leung_chen_2019, title={Managing congestion at visitor hotspots using park-level use level data: Case study of a Chinese World Heritage Site}, volume={14}, ISBN={1932-6203}, DOI={10.1371/journal.pone.0215266}, number={7}, journal={PLOS ONE}, author={Guo, Jin-Hui and Guo, Tian and Lin, Kai-Miao and Lin, Dan-Dan and Leung, Yu-Fai and Chen, Qiu-Hua}, year={2019} }
 @article{tsai_leung_mchale_floyd_reich_2019, title={Relationships between urban green land cover and human health at different spatial resolutions}, volume={22}, ISBN={1573-1642}, DOI={10.1007/s11252-018-0813-3}, number={2}, journal={URBAN ECOSYSTEMS}, author={Tsai, Wei-Lun and Leung, Yu-Fai and McHale, Melissa R. and Floyd, Myron F. and Reich, Brian J.}, year={2019}, month={Apr}, pages={315–324} }
 @article{walden-schreiner_leung_tateosian_2018, title={Digital footprints: Incorporating crowdsourced geographic information for protected area management}, volume={90}, DOI={10.1016/j.apgeog.2017.11.004}, journal={Applied Geography}, author={Walden-Schreiner, C. and Leung, Yu-Fai and Tateosian, L.}, year={2018}, pages={44–54} }
 @article{walden-schreiner_leung_kuhn_newburger_2018, title={Integrating direct observation and GPS tracking to monitor animal behavior for resource management}, volume={190}, DOI={10.1007/s10661-018-6463-3}, number={2}, journal={Environmental Monitoring and Assessment}, author={Walden-Schreiner, C. and Leung, Yu-Fai and Kuhn, T. and Newburger, T.}, year={2018} }
 @article{ng_leung_cheung_fang_2018, title={Land degradation effects initiated by trail running events in an urban protected area of Hong Kong}, volume={29}, DOI={10.1002/ldr.2863}, number={3}, journal={Land Degradation & Development}, author={Ng, S. L. and Leung, Yu-Fai and Cheung, S. Y. and Fang, W.}, year={2018}, pages={422–432} }
 @article{tsai_mchale_jennings_marquet_hipp_leung_floyd_2018, title={Relationships between characteristics of urban green land cover and mental health in US metropolitan areas}, volume={15}, DOI={10.3390/ijerph15020340}, number={2}, journal={International Journal of Environmental Research and Public Health}, author={Tsai, W. L. and McHale, M. R. and Jennings, V. and Marquet, O. and Hipp, J. A. and Leung, Yu-Fai and Floyd, Myron F.}, year={2018} }
 @article{walden-schreiner_rossi_barros_pickering_leung_2018, title={Using crowd-sourced photos to assess seasonal patterns of visitor use in mountain-protected areas}, volume={47}, DOI={10.1007/s13280-018-1020-4}, number={7}, journal={AMBIO}, author={Walden-Schreiner, Chelsey and Rossi, Sebastian Dario and Barros, Agustina and Pickering, Catherine and Leung, Yu-Fai}, year={2018}, pages={781–793} }
 @article{miller_leung_kays_2017, title={Coupling visitor and wildlife monitoring in protected areas using camera traps}, volume={17}, DOI={10.1016/j.jort.2016.09.007}, journal={Journal of Outdoor Recreation and Tourism-Research Planning and Management}, author={Miller, A. B. and Leung, Yu-Fai and Kays, R.}, year={2017}, pages={44–53} }
 @article{walden-schreiner_leung_kuhn_newburger_tsai_2017, title={Environmental and managerial factors associated with pack stock distribution in high elevation meadows: Case study from Yosemite National Park}, volume={193}, DOI={10.1016/j.jenvman.2017.01.076}, journal={Journal of Environmental Management}, author={Walden-Schreiner, C. and Leung, Yu-Fai and Kuhn, T. and Newburger, T. and Tsai, W. L.}, year={2017}, pages={52–63} }
 @article{hockett_marion_leung_2017, title={The efficacy of combined educational and site management actions in reducing off-trail hiking in an urban-proximate protected area}, volume={203}, DOI={10.1016/j.jenvman.2017.06.073}, journal={Journal of Environmental Management}, author={Hockett, K. S. and Marion, J. L. and Leung, Yu-Fai}, year={2017}, pages={17–28} }
 @article{marion_leung_eagleston_burroughs_2016, title={A Review and synthesis of recreation ecology research findings on visitor impacts to wilderness and protected natural areas}, volume={114}, DOI={10.5849/jof.15-498}, number={3}, journal={Journal of Forestry}, author={Marion, J. L. and Leung, Yu-Fai and Eagleston, H. and Burroughs, K.}, year={2016}, pages={352–362} }
 @article{xu_leung_barbieri_2016, title={Characterizing themed touring routes: A geospatial and tourism evaluation of wine trails}, volume={13}, DOI={10.1080/21568316.2015.1074096}, number={2}, journal={Tourism Planning & Development}, author={Xu, S. Y. and Leung, Yu-Fai and Barbieri, C.}, year={2016}, pages={168–184} }
 @article{pickering_leung_2016, title={Editorial for the special issue of the Journal of Outdoor Recreation and Tourism on mountain biking}, volume={15}, DOI={10.1016/s2213-0780(16)30064-0}, journal={Journal of Outdoor Recreation and Tourism-Research Planning and Management}, author={Pickering, C. and Leung, Yu-Fai}, year={2016}, pages={III-} }
 @article{xu_barbieri_anderson_leung_rozier-rich_2016, title={Residents' perceptions of wine tourism development}, volume={55}, ISSN={0261-5177}, url={http://dx.doi.org/10.1016/J.TOURMAN.2016.02.016}, DOI={10.1016/J.TOURMAN.2016.02.016}, journal={Tourism Management}, publisher={Elsevier BV}, author={Xu, Shuangyu and Barbieri, Carla and Anderson, Dorothy and Leung, Yu-Fai and Rozier-Rich, Samantha}, year={2016}, month={Aug}, pages={276–286} }
 @article{leung_smith_seekamp_conlon_mayer_guo_walden-schreiner_adams_keane_2016, title={The Effects of 2D and 3D imagery and an educational message on perceptions of trail impacts}, volume={36}, DOI={10.3375/043.036.0115}, number={1}, journal={Natural Areas Journal}, author={Leung, Yu-Fai and Smith, J. W. and Seekamp, E. and Conlon, K. and Mayer, J. E. and Guo, T. and Walden-Schreiner, C. and Adams, B. and Keane, R.}, year={2016}, pages={88–92} }
 @article{tsai_floyd_leung_mchale_reich_2016, title={Urban Vegetative Cover Fragmentation in the US Associations With Physical Activity and BMI}, volume={50}, DOI={10.1016/j.amepre.2015.09.022}, number={4}, journal={American Journal of Preventive Medicine}, author={Tsai, W. L. and Floyd, Myron F. and Leung, Yu-Fai and McHale, M. R. and Reich, B. J.}, year={2016}, pages={509–517} }
 @article{li_whitlow_bitsura-meszaros_leung_barbieri_2015, title={A preliminary evaluation of World Heritage tourism promotion: comparing websites from Australia, China, and Mexico}, volume={13}, ISSN={2156-8316 2156-8324}, url={http://dx.doi.org/10.1080/21568316.2015.1101393}, DOI={10.1080/21568316.2015.1101393}, number={3}, journal={Tourism Planning & Development}, publisher={Informa UK Limited}, author={Li, Jing and Whitlow, Matthew and Bitsura-Meszaros, Karly and Leung, Yu-Fai and Barbieri, Carla}, year={2015}, month={Nov}, pages={370–376} }
 @article{leung_walden-schreiner_conlon_miller_2015, title={A simple method for monitoring dog leash compliance behavior in parks and natural areas}, volume={9}, ISSN={2213-0780}, url={http://dx.doi.org/10.1016/J.JORT.2015.03.001}, DOI={10.1016/J.JORT.2015.03.001}, journal={Journal of Outdoor Recreation and Tourism}, publisher={Elsevier BV}, author={Leung, Yu-Fai and Walden-Schreiner, Chelsey and Conlon, Katharine and Miller, Anna B.}, year={2015}, month={Apr}, pages={11–16} }
 @article{guo_smith_leung_seekamp_moore_2015, title={Determinants of responsible hiking behavior: Results from a stated choice experiment}, volume={56}, DOI={10.1007/s00267-015-0513-1}, number={3}, journal={Environmental Management}, author={Guo, T. and Smith, J. W. and Leung, Yu-Fai and Seekamp, E. and Moore, R. L.}, year={2015}, pages={765–776} }
 @article{serenari_peterson_leung_stowhas_wallace_sills_2015, title={Private development-based forest conservation in Patagonia: Comparing mental models and revealing cultural truths}, volume={20}, DOI={10.5751/es-07696-200304}, number={3}, journal={Ecology and Society}, author={Serenari, C. and Peterson, M. N. and Leung, Yu-Fai and Stowhas, P. and Wallace, T. and Sills, E. O.}, year={2015} }
 @article{smith_leung_seekamp_walden-schreiner_miller_2015, title={Projected impacts to the production of outdoor recreation opportunities across state park systems in the US due to the adoption of a domestic climate change mitigation policy}, volume={48}, DOI={10.1016/j.envsci.2014.12.013}, journal={Environmental Science & Policy}, author={Smith, J. W. and Leung, Yu-Fai and Seekamp, E. and Walden-Schreiner, C. and Miller, A.}, year={2015}, pages={77–88} }
 @article{walden-schreiner_leung_floyd_2014, title={Incorporating physical activity measures into environmental monitoring of national parks: An example from Yosemite}, volume={11}, DOI={10.1123/jpah.2012-0361}, number={7}, journal={Journal of Physical Activity & Health}, author={Walden-Schreiner, C. and Leung, Yu-Fai and Floyd, Myron F.}, year={2014}, pages={1284–1290} }
 @article{leung_walden-schreiner_matisoff_naber_robinson_2013, title={A two-pronged approach to evaluating environmental concerns of disc golf as emerging recreation in urban natural areas}, volume={18}, ISSN={1360-6719 1466-450X}, url={http://dx.doi.org/10.1080/13606719.2013.809181}, DOI={10.1080/13606719.2013.809181}, number={4}, journal={Managing Leisure}, publisher={Informa UK Limited}, author={Leung, Yu-Fai and Walden-Schreiner, Chelsey and Matisoff, Craig and Naber, Michael and Robinson, Jessica}, year={2013}, month={Oct}, pages={273–285} }
 @article{walden-schreiner_leung_2013, title={Spatially characterizing visitor use and its association with informal trails in Yosemite Valley meadows}, volume={52}, DOI={10.1007/s00267-013-0066-0}, number={1}, journal={Environmental Management}, author={Walden-Schreiner, C. and Leung, Yu-Fai}, year={2013}, pages={163–178} }
 @article{leung_catts_2013, title={The joy of bioresources: Sustainable forest-recreation connections}, volume={8}, DOI={10.15376/biores.8.1.1-2}, number={1}, journal={BioResources}, author={Leung, Yu-Fai and Catts, G.}, year={2013}, pages={1–2} }
 @article{siderelis_moore_leung_smith_2012, title={A nationwide production analysis of state park attendance in the United States}, volume={99}, DOI={10.1016/j.jenvman.2012.01.005}, journal={Journal of Environmental Management}, author={Siderelis, C. and Moore, R. L. and Leung, Yu-Fai and Smith, J. W.}, year={2012}, pages={18–26} }
 @article{leung_2012, title={Recreation ecology research in East Asia's protected areas: Redefining impacts?}, volume={20}, DOI={10.1016/j.jnc.2012.07.005}, number={6}, journal={Journal for Nature Conservation}, author={Leung, Yu-Fai}, year={2012}, pages={349–356} }
 @article{newsome_dowling_leung_2012, title={The nature and management of geotourism: A case study of two established iconic geotourism destinations}, volume={2-3}, ISSN={2211-9736}, url={http://dx.doi.org/10.1016/j.tmp.2011.12.009}, DOI={10.1016/j.tmp.2011.12.009}, journal={Tourism Management Perspectives}, publisher={Elsevier BV}, author={Newsome, David and Dowling, Ross and Leung, Yu-Fai}, year={2012}, month={Apr}, pages={19–27} }
 @article{serenari_leung_attarian_franck_2012, title={Understanding environmentally significant behavior among whitewater rafting and trekking guides in the Garhwal Himalaya, India}, volume={20}, DOI={10.1080/09669582.2011.638383}, number={5}, journal={Journal of Sustainable Tourism}, author={Serenari, C. and Leung, Yu-Fai and Attarian, A. and Franck, C.}, year={2012}, pages={757–772} }
 @article{moore_leung_matisoff_dorwart_parker_2012, title={Understanding users' perceptions of trail resource impacts and how they affect experiences: An integrated approach}, volume={107}, DOI={10.1016/j.landurbplan.2012.06.016}, number={4}, journal={Landscape and Urban Planning}, author={Moore, R. L. and Leung, Yu-Fai and Matisoff, C. and Dorwart, C. and Parker, A.}, year={2012}, pages={343–350} }
 @article{leung_newburger_jones_kuhn_woiderski_2011, title={Developing a monitoring protocol for visitor-created informal trails in Yosemite National Park, USA}, volume={47}, DOI={10.1007/s00267-010-9581-4}, number={1}, journal={Environmental Management}, author={Leung, Yu-Fai and Newburger, T. and Jones, M. and Kuhn, B. and Woiderski, B.}, year={2011}, pages={93–106} }
 @article{chiou_tsai_leung_2010, title={A GIS-dynamic segmentation approach to planning travel routes on forest trail networks in Central Taiwan}, volume={97}, DOI={10.1016/j.landurbplan.2010.06.004}, number={4}, journal={Landscape and Urban Planning}, author={Chiou, C. R. and Tsai, W. L. and Leung, Yu-Fai}, year={2010}, pages={221–228} }
 @book{leung_siderelis_serenari_2010, title={Annual Information Exchange -- Statistical Report of State Park Operations: 2008-2009}, institution={Raleigh, NC: National Association of State Park Directors}, author={Leung, Y.-F and Siderelis, C. and Serenari, C.}, year={2010} }
 @article{pickering_hill_newsome_leung_2010, title={Comparing hiking, mountain biking and horse riding impacts on vegetation and soils in Australia and the United States of America}, volume={91}, DOI={10.1016/j.jenvman.2009.09.025}, number={3}, journal={Journal of Environmental Management}, author={Pickering, C. M. and Hill, W. and Newsome, D. and Leung, Yu-Fai}, year={2010}, pages={551–562} }
 @book{hockett_clark_leung_marion_park_2010, title={Deterring Off-Trail Hiking in Protected Natural Areas: Evaluating Options with Surveys and Unobtrusive Observations}, institution={Blacksburg, VA: USGS Patuxent Wildlife Research Center, Virginia Tech Field Unit}, author={Hockett, K. S. and Clark, A. and Leung, Y.-F and Marion, J. L. and Park, L. O.}, year={2010} }
 @inbook{supak_leung_stewart_2010, title={Geotourism Potential in North Carolina: Perspectives from Interpretation at State Parks}, ISBN={9781906884093}, booktitle={Geotourism: The Tourism of Geology and Landscape}, publisher={Oxford: Goodfellow Publishers Ltd.}, author={Supak, S. and Leung, Y.F. and Stewart, K.}, year={2010} }
 @article{monz_cole_leung_marion_2010, title={Sustaining visitor use in protected areas: Future opportunities in recreation ecology research based on the USA experience}, volume={45}, DOI={10.1007/s00267-009-9406-5}, number={3}, journal={Environmental Management}, author={Monz, C. A. and Cole, D. N. and Leung, Yu-Fai and Marion, J. L.}, year={2010}, pages={551–562} }
 @article{siderelis_naber_leung_2010, title={The Influence of Site Design and Resource Conditions on Outdoor Recreation Demand: A Mountain Biking Case Study}, volume={42}, ISSN={0022-2216 2159-6417}, url={http://dx.doi.org/10.1080/00222216.2010.11950219}, DOI={10.1080/00222216.2010.11950219}, number={4}, journal={Journal of Leisure Research}, publisher={Informa UK Limited}, author={Siderelis, Christos and Naber, Michael and Leung, Yu-Fai}, year={2010}, month={Dec}, pages={573–590} }
 @article{dorwart_r._leung_2010, title={Visitors' perceptions of a trail environment and effects on experiences: A model for nature-based recreation experiences}, volume={32}, ISBN={Duplicate}, DOI={10.1080/01490400903430863}, number={1}, journal={Leisure Sciences}, author={Dorwart, C. E. Moore and R., L. and Leung, Yu-Fai}, year={2010}, pages={33–54} }
 @book{leung_siderelis_hoffbeck_2009, title={Annual Information Exchange -- Statistical Report of State Park Operations: 2007-08}, institution={Raleigh, NC: National Association of State Park Directors}, author={Leung, Y.-F and Siderelis, C. and Hoffbeck, D.}, year={2009} }
 @article{tien_leung_lu_2009, title={Developing a quality evaluation tool for monitoring protocols of natural recreation areas [in Chinese]}, volume={42}, number={3}, journal={Quarterly Journal of Chinese Forestry}, author={Tien, S.-H and Leung, Y.-F and Lu, D.-J}, year={2009}, pages={457–464} }
 @article{lin_leung_hsu_sheu_2009, title={Factors that influence the effectiveness of trail surfacing in minimizing recreational impact: A sudy in Yangmingshan National Park [in Chinese]}, volume={19}, number={4}, journal={Journal of National Parks (Taiwan)}, author={Lin, H.-C and Leung, Y.-F and Hsu, S.-I and Sheu, J.-E}, year={2009}, pages={65–79} }
 @inproceedings{hsu_leung_wang_2009, title={VERP project in Yu-Shan National Park: Research and application}, booktitle={Proceedings of the Leave No Trace and Recreational Impacts Conference}, publisher={Taipei, Taiwan: Forestry Bureau}, author={Hsu, Y.-C and Leung, Y.-F and Wang, C.-P}, year={2009}, pages={20–37} }
 @book{leung_siderelis_hoffbeck_2008, title={Annual Information Exchange -- Statistical Report of State Park Operations: 2006-07}, institution={Raleigh, NC: National Association of State Park Directors}, author={Leung, Y.-F and Siderelis, C. and Hoffbeck, D.}, year={2008} }
 @inbook{leung_marion_farrell_2008, title={Recreation ecology in sustainable tourism and ecotourism: a strengthening role}, DOI={10.1079/9781845934705.0019}, booktitle={Tourism, Recreation and Sustainability: Linking Culture and the Environment, 2nd Ed.}, publisher={Wallingford, UK: CABI Publishing}, author={Leung, Yu-Fai and Marion, J. L. and Farrell, T. A.}, year={2008}, pages={19–37} }
 @inproceedings{leung_2008, title={Research foundations of the VERP framework: A synopsis}, booktitle={Recreational Use and Resource Protection in National Parks: Conference Proceedings}, publisher={Hualien, Taiwan: National Dong Hwa University, Institute of Tourism and Recreation Management}, author={Leung, Y.-F}, year={2008}, pages={i-} }
 @book{leung_siderelis_chelf_2007, title={Annual Information Exchange -- Statistical Report of State Park Operations: 2005-06}, institution={Raleigh, NC: National Association of State Park Directors}, author={Leung, Y.-F and Siderelis, C. and Chelf, S.}, year={2007} }
 @article{clark_leung_2007, title={Getting out, going green: Outdoor recreation is linked to pro-environmental attitudes and behaviors}, volume={42}, number={8}, journal={Parks & Recreation}, author={Clark, A. and Leung, Y.-F.}, year={2007}, pages={26–31} }
 @article{kline_cardenas_leung_sanders_2007, title={Sustainable farm tourism: Understanding and managing environmental impacts of visitor activities}, volume={45}, number={2}, journal={Journal of Extension}, author={Kline, C. and Cardenas, D. and Leung, Y.-F. and Sanders, S.}, year={2007} }
 @inproceedings{dorwart_moore_leung_2007, title={Visitor employed photography (VEP): An examination of its potential and use in evaluating visitors' perceptions of resource impacts in trail and park settings (General technical report, NRS-P-14)}, booktitle={Proceedings of the 2006 Northeastern Recreation Research Symposium, April 9-11, 2006, the Sagamore}, publisher={Newtown Square, PA: U.S. Department of Agriculture, Forest Service Northern Research Station}, author={Dorwart, C. and Moore, R. L. and Leung, Y.-F.}, year={2007}, pages={307–315} }
 @inbook{leung_marafa_chau_2006, title={Embracing or overstretching the concept of urban ecotourism: The case of Hong Kong}, booktitle={Sustainable Management of Protected Areas for Future Generations}, publisher={Hong Kong: Cosmos Books Ltd.}, author={Leung, Y.-F and Marafa, L. M. and Chau, K.-C}, year={2006}, pages={389–400} }
 @inproceedings{robinson_leung_eagles_2006, title={Making your visitors count: Collecting and archiving visitation data in U.S. protected areas}, booktitle={People, Places, and Parks: Proceedings of 2005 George Wright Conference on Protected Areas}, publisher={Hancock, MI: George Wright Society}, author={Robinson, J. A. and Leung, Y.-F and Eagles, P. F. J.}, year={2006}, pages={236–241} }
 @article{monz_leung_2006, title={Meaningful measures: Developing indicators of visitor impact in the National Park Service Inventory and Monitoring program}, volume={23}, number={2}, journal={George Wright Forum}, author={Monz, C. and Leung, Y.-F.}, year={2006}, pages={17–27} }
 @article{newman_monz_leung_theobald_2006, title={Monitoring campsite proliferation and conditions: Recent methodological considerations}, volume={23}, number={2}, journal={George Wright Forum}, author={Newman, P. and Monz, C. and Leung, Y.-F. and Theobald, D.}, year={2006}, pages={28–35} }
 @article{marion_leung_nepal_2006, title={Monitoring trail conditions: New methodological considerations}, volume={23}, number={2}, journal={George Wright Forum}, author={Marion, J. and Leung, Y.-F. and Nepal, S. K.}, year={2006}, pages={36–49} }
 @article{naber_leung_2006, title={Technology lends a helping hand: Recreation managers are learning the benefits of using geospatial technologies in resource management}, volume={41}, number={7}, journal={Parks & Recreation}, author={Naber, M. D. and Leung, Y.-F}, year={2006}, pages={24–30} }
 @article{leung_monz_2006, title={Visitor impact monitoring: Old issues, new challenges}, volume={23}, number={2}, journal={George Wright Forum}, author={Leung, Y.-F. and Monz, C.}, year={2006}, pages={7–10} }
 @article{manning_leung_budruk_2005, title={Research to support management of visitor carrying capacity of Boston Harbor Islands}, volume={12}, DOI={10.1656/1092-6194(2005)12[201:RTSMOV]2.0.CO;2}, number={3}, journal={Northeastern Naturalist}, author={Manning, R. and Leung, Yu-Fai and Budruk, M.}, year={2005}, pages={201–220} }
 @inbook{marion_leung_2004, title={Environmentally sustainable trail management}, DOI={10.1079/9780851998107.0229}, booktitle={Environmental Impacts of Ecotourism}, publisher={Wallingford, UK: CABI Publishing}, author={Marion, J. L. and Leung, Yu-Fai}, year={2004}, pages={229–243} }
 @inproceedings{bloyer_gustke_leung_2004, title={Indicators for sustainable tourism development: Crossing the divide from definitions to actions}, booktitle={Sustainable tourism}, publisher={Southampton, UK: Wessex Institute of Technology Press}, author={Bloyer, J. and Gustke, L. and Leung, Y.-F}, year={2004}, pages={109–115} }
 @article{leung_2004, title={Leisure matters to the environment: the era of ecoleisure}, volume={7}, number={2}, journal={Australasian Parks and Leisure}, author={Leung, Y.-F.}, year={2004} }
 @inbook{leung_marion_2004, title={Managing impacts of camping}, DOI={10.1079/9780851998107.0245}, booktitle={Environmental Impacts of Ecotourism}, publisher={Wallingford, UK: CABI Publishing}, author={Leung, Yu-Fai and Marion, J. L.}, year={2004}, pages={245–258} }
 @article{dorwart_leung_moore_2004, title={Managing visitors' perceptions}, volume={39}, number={5}, journal={Parks & Recreation}, author={Dorwart, C. E. and Leung, Y.-F. and Moore, R. L.}, year={2004}, pages={24–31} }
 @inproceedings{monz_young_leung_2004, title={Monitoring the impacts of visitors to shorebird populations in the NPS Coastal and Barrier Islands Network areas}, booktitle={Proceedings of the 2004 Northeastern Recreation Research Symposium}, publisher={Bolton Landing, NY: Newtown Square, PA: USDA Forest Service, Northeastern Research Station}, author={Monz, C. and Young, E. and Leung, Y.-F}, year={2004}, pages={373–377} }
 @book{leung_meyer_2004, title={Research to Support Development of Resource Indicators and Standards for Implementing Visitor Experience and Resource Protection (VERP) Framework at Boston Harbor Islands National Park Area}, institution={Raleigh, NC: NCSU-PRTM}, author={Leung, Y.-F and Meyer, K.}, year={2004} }
 @book{leung_attarian_2003, title={Evaluating the Effectiveness of the Leave No Trace Program in the City of Durango, Colorado}, volume={Final Report}, institution={Boulder, CO: The Leave No Trace, Inc.}, author={Leung, Y.-F and Attarian, A.}, year={2003} }
 @article{leung_attarian_2003, title={Frontcountry visitor information/education programs: Are there lessons for wilderness?}, volume={9}, number={1}, journal={International Journal of Wilderness}, author={Leung, Y.-F. and Attarian, A.}, year={2003}, pages={32–33} }
 @article{leung_ivy_2003, title={How useful are course websites? A study of students' perceptions}, volume={2}, number={2}, journal={Journal of Hospitality, Leisure, Sport & Tourism Education}, author={Leung, Y.-F. and Ivy, M.}, year={2003}, pages={15–24} }
 @inproceedings{ingle_leung_monz_bauman_2003, title={Monitoring visitor impacts in coastal national parks: A review of techniques}, booktitle={Protecting Our Diverse Heritage: The Role of Parks, Protected Areas, and Cultural Sites -- Proceedings of the George Wright Society/National Park Service Joint Conference}, publisher={Hancock, MI: The George Wright Society}, author={Ingle, M. C. and Leung, Y.-F and Monz, C. and Bauman, H.}, year={2003}, pages={228–233} }
 @article{leung_lee_2003, title={Recreation ecology and visitor carrying capacity management: Implications for protected areas in East Asia}, volume={26}, DOI={10.5141/jefb.2003.26.2.053}, number={2}, journal={Korean Journal of Ecology}, author={Leung, Yu-Fai and Lee, J. H.}, year={2003}, pages={53–58} }
 @inbook{leung_2003, title={Resource management}, booktitle={Encyclopedia of leisure and outdoor recreation}, publisher={London ; New York: Routledge}, author={Leung, Y.-F.}, year={2003}, pages={434–435} }
 @inproceedings{leung_meyer_2003, title={Soil compaction as indicated by penetration resistance: A comparison of two types of penetrometers}, booktitle={Protecting Our Diverse Heritage: The Role of Parks, Protected Areas, and Cultural Sites -- Proceedings of the George Wright Society/National Park Service Joint Conference}, publisher={Hancock, MI: The George Wright Society}, author={Leung, Y.-F and Meyer, K.}, year={2003}, pages={370–375} }
 @article{wirsching_leung_a._2003, title={Swatting little bugs: What agencies can do to decrease depreciative visitor behavior}, volume={38}, number={11}, journal={Parks & Recreation}, author={Wirsching, A. and Leung, Y.-F. and A., Attarian}, year={2003}, pages={16–22} }
 @inproceedings{monz_leung_ingle_bauman_2003, title={Visitor impact monitoring in the Coastal and Barrier Island Network}, booktitle={Protecting Our Diverse Heritage: The Role of Parks, Protected Areas, and Cultural Sites -- Proceedings of the George Wright Society/National Park Service Joint Conference}, publisher={Hancock, MI: The George Wright Society}, author={Monz, C. and Leung, Y.-F and Ingle, M. C. and Bauman, H.}, year={2003}, pages={135–139} }
 @article{leung_shaw_johnson_duhaime_2002, title={More than a database: integrating GIS data with the Boston Harbor Islands Visitor Carrying Capacity Study}, volume={19}, number={1}, journal={George Wright Forum}, author={Leung, Y.-F. and Shaw, N. and Johnson, K. and Duhaime, R.}, year={2002}, pages={69–78} }
 @inproceedings{leung_marion_cole_2002, title={Visitor impact assessment and monitoring systems: evolution and
current development}, number={2002}, booktitle={Managing protected areas in a changing world: Proceedings of the 4th International Conference on Science and Management of Protected Areas; May 14-19, 2000}, publisher={Waterloo, Ont.: The Science and Management of Protected Areas Association}, author={Leung, Y.-F. and Marion, J. L. and Cole, D. N.}, year={2002}, pages={213–220} }
 @inproceedings{leung_farrell_2002, title={Visitor impact knowledge is basic}, booktitle={Portfolio of Statements and Presentations -- The World Ecotourism Summit (CD-ROM)}, publisher={Paris, France and Madrid, Spain: United Nations Environment Programme and World Tourism Organization}, author={Leung, Y.-F and Farrell, T. A.}, year={2002} }
 @article{leung_2001, title={Environmental impacts of tourism at China's World Heritage sites}, volume={26}, DOI={10.1080/02508281.2001.11081186}, number={1}, journal={Tourism Recreation Research}, author={Leung, Yu-Fai}, year={2001}, pages={117–122} }
 @inbook{leung_marion_farrell_2001, title={The role of recreation ecology in sustainable tourism and ecotourism}, DOI={10.1079/9780851995052.0021}, booktitle={Tourism, recreation, and sustainability: Linking culture and the environment}, publisher={New York: CABI Pub.}, author={Leung, Yu-Fai and Marion, J. L. and Farrell, T. A.}, year={2001}, pages={21–39} }
 @article{marion_leung_2001, title={Trail resource impacts and an examination of alternative assessment techniques}, volume={19}, number={3}, journal={Journal of Park and Recreation Administration}, author={Marion, J. L. and Leung, Y.-F.}, year={2001}, pages={17–37} }
 @inproceedings{leung_marion_2000, title={Recreation impacts and management in wilderness: A state-of-knowledge review}, booktitle={Wilderness science in a time of change conference: Missoula, Montana, May 23-27, 1999: Vol. 5, Wilderness ecosystems, threats, and management (Proceedings RMRS ; P-15)}, publisher={Ogden, UT: United States Department of Agriculture, Forest Service, Rocky Mountain Research Station}, author={Leung, Y.-F. and Marion, J. L.}, year={2000}, pages={23–48} }
 @inproceedings{leung_marion_2000, title={Wilderness campsite conditions under an unregulated camping policy: An Eastern example}, booktitle={Wilderness science in a time of change conference: Missoula, Montana, May 23-27, 1999: Vol. 5, Wilderness ecosystems, threats, and management (Proceedings RMRS ; P-15)}, publisher={Ogden, UT: United States Department of Agriculture, Forest Service, Rocky Mountain Research Station}, author={Leung, Y.-F. and Marion, J. L.}, year={2000}, pages={148–152} }
 @article{leung_marion_1999, title={Assessing trail conditions in protected areas: application of a problem-assessment method in Great Smoky Mountains National Park, USA}, volume={26}, DOI={10.1017/S0376892999000399}, number={4}, journal={Environmental Conservation}, author={Leung, Yu-Fai and Marion, J. L.}, year={1999}, pages={270–279} }
 @article{leung_marion_1999, title={Characterizing backcountry camping impacts in Great Smoky Mountains National Park, USA}, volume={57}, DOI={10.1006/jema.1999.0303}, number={3}, journal={Journal of Environmental Management}, author={Leung, Yu-Fai and Marion, J. L.}, year={1999}, pages={193–203} }
 @article{leung_marion_1999, title={Spatial strategies for managing visitor impacts in national parks}, volume={17}, number={4}, journal={Journal of Park and Recreation Administration}, author={Leung, Y.-F. and Marion, J. L.}, year={1999}, pages={20–38} }
 @article{leung_marion_1999, title={The Influence of sampling interval on the accuracy of trail impact assessment}, volume={43}, DOI={10.1016/S0169-2046(98)00110-8}, journal={Landscape and Urban Planning}, author={Leung, Yu-Fai and Marion, J. L.}, year={1999}, pages={167–179} }
 @book{leung_marion_1998, title={A Survey of Whitewater Recreation Sites on Fiver West Virginia Rivers}, institution={Blacksburg, VA: USGS Biological Resources Division, Cooperative Park Studies Unit}, author={Leung, Y.-F and Marion, J. L.}, year={1998} }
 @inbook{marion_leung_1998, title={Campsite survey implications for managing designated campsites at Great Smoky Mountains National Park}, booktitle={Wilderness and Natural Areas in Eastern North America: Research, Management and Planning}, publisher={Nacogdoches, TX :Stephen F. Austin State University, Center for Applied Studies in Forestry}, author={Marion, J. L. and Leung, Y.-F}, year={1998}, pages={146–155} }
 @article{leung_marion_1998, title={Evaluating spatial qualities of visitor impacts on recreation resources: An index approach}, volume={23}, number={4}, journal={Journal of Applied Recreation Research}, author={Leung, Y.-F. and Marion, J.L.}, year={1998}, pages={367–389} }
 @article{leung_1998, title={Using the Internet for natural resources research: Results from an online user survey}, volume={27}, journal={Journal of Natural Resources and Life Sciences Education}, author={Leung, Y.-F}, year={1998}, pages={8–12} }
 @book{marion_leung_1997, title={An Assessment of Campsite Conditions in Great Smoky Mountains National Park}, journal={Research/Resources Management Report}, institution={Atlanta, GA: USDI National Park Service, Southeast Regional Office}, author={Marion, J. L. and Leung, Y.-F}, year={1997} }
 @article{leung_1997, title={Natural resources research on the Internet: Possibilities and pitfalls}, volume={17}, number={1}, journal={Natural Areas Journal}, author={Leung, Y.-F}, year={1997}, pages={69–74} }
 @article{lam_leung_yao_1997, title={Nutrient fluxes in the Shenchong Basin, Deqing County, South China}, volume={29}, DOI={10.1016/S0341-8162(96)00056-2}, number={2}, journal={CATENA}, author={Lam, K.-C and Leung, Yu-Fai and Yao, Q.}, year={1997}, pages={191–210} }
 @inproceedings{leung_marion_1996, title={River recreation impacts: A survey of day and overnight whitewater use sites along five West Virginia rivers}, booktitle={Beyond the Banks: Proceedings of the 3rd Biennial RMS Symposium on River Management and Planning}, publisher={Missoula, MT: River Management Society}, author={Leung, Y.-F and Marion, J. L.}, year={1996}, pages={135–143} }
 @article{leung_marion_1996, title={Trail degradation as influenced by environmental factors: A state-of-knowledge review}, volume={51}, number={2}, journal={Journal of Soil & Water Conservation}, author={Leung, Y.-F and Marion, J. L.}, year={1996}, pages={130–136} }
 @book{leung_marion_1995, title={A Survey of Campsite Conditions in Eleven Wilderness Areas of the Jefferson National Forest}, institution={Blacksburg, VA: USDI National Biological Service, Virginia Tech Cooperative Park Studies Unit}, author={Leung, Y.-F and Marion, J. L.}, year={1995} }
 @article{leung_neller_1995, title={Trail degradation along the Pat Sin Range: An example of environmental geomorphology}, volume={1}, number={Autumn}, journal={Hong Kong Geologist}, author={Leung, Y.-F and Neller, R. J.}, year={1995}, pages={79–87} }