@article{lewis_rasdorf_frey_leming_2012, title={Effects of Engine Idling on National Ambient Air Quality Standards Criteria Pollutant Emissions from Nonroad Diesel Construction Equipment}, ISSN={["0361-1981"]}, DOI={10.3141/2270-09}, number={2270}, journal={TRANSPORTATION RESEARCH RECORD}, author={Lewis, Phil and Rasdorf, William and Frey, H. Christopher and Leming, Michael}, year={2012}, pages={67–75} }
 @article{frey_rasdorf_lewis_2010, title={Comprehensive Field Study of Fuel Use and Emissions of Nonroad Diesel Construction Equipment}, ISSN={["0361-1981"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-78651305557&partnerID=MN8TOARS}, DOI={10.3141/2158-09}, number={2158}, journal={TRANSPORTATION RESEARCH RECORD}, author={Frey, H. Christopher and Rasdorf, William and Lewis, Phil}, year={2010}, pages={69–76} }
 @article{rasdorf_frey_lewis_kim_pang_abolhassani_2010, title={Field Procedures for Real-World Measurements of Emissions from Diesel Construction Vehicles}, volume={16}, ISSN={["1943-555X"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-78649383748&partnerID=MN8TOARS}, DOI={10.1061/(asce)is.1943-555x.0000027}, number={3}, journal={JOURNAL OF INFRASTRUCTURE SYSTEMS}, author={Rasdorf, William and Frey, Christopher and Lewis, Phil and Kim, Kangwook and Pang, Shih-Hao and Abolhassani, Saeed}, year={2010}, month={Sep}, pages={216–225} }
 @article{lewis_frey_rasdorf_2009, title={Development and Use of Emissions Inventories for Construction Vehicles}, ISSN={["2169-4052"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-76149135725&partnerID=MN8TOARS}, DOI={10.3141/2123-06}, number={2123}, journal={TRANSPORTATION RESEARCH RECORD}, author={Lewis, Phil and Frey, H. Christopher and Rasdorf, William}, year={2009}, pages={46–53} }
 @article{lewis_rasdorf_frey_pang_kim_2009, title={Requirements and Incentives for Reducing Construction Vehicle Emissions and Comparison of Nonroad Diesel Engine Emissions Data Sources}, volume={135}, ISSN={["0733-9364"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-65249158552&partnerID=MN8TOARS}, DOI={10.1061/(ASCE)CO.1943-7862.0000008}, number={5}, journal={JOURNAL OF CONSTRUCTION ENGINEERING AND MANAGEMENT-ASCE}, author={Lewis, Phil and Rasdorf, William and Frey, H. Christopher and Pang, Shih-Hao and Kim, Kangwook}, year={2009}, month={May}, pages={341–351} }
 @article{frey_kim_pang_rasdorf_lewis_2008, title={Characterization of Real-World Activity, Fuel Use, and Emissions for Selected Motor Graders Fueled with Petroleum Diesel and B20 Biodiesel}, volume={58}, ISSN={["1047-3289"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-55049085635&partnerID=MN8TOARS}, DOI={10.3155/1047-3289.58.10.1274}, number={10}, journal={JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION}, author={Frey, H. Christopher and Kim, Kangwook and Pang, Shih-Hao and Rasdorf, William J. and Lewis, Phil}, year={2008}, month={Oct}, pages={1274–1287} }
 @article{frey_rasdorf_kim_pang_lewis_2008, title={Comparison of Real-World Emissions of B20 Biodiesel Versus Petroleum Diesel for Selected Nonroad Vehicles and Engine Tiers}, ISSN={["0361-1981"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-56749107557&partnerID=MN8TOARS}, DOI={10.3141/2058-05}, number={2058}, journal={TRANSPORTATION RESEARCH RECORD}, author={Frey, H. Christopher and Rasdorf, William and Kim, Kangwook and Pang, Ghih-hao and Lewis, Phil}, year={2008}, pages={33–42} }