@article{shah_grimes_oviedo-rondón_westerman_2014, title={Acidifier application rate impacts on ammonia emissions from US roaster chicken houses}, volume={92}, ISSN={1352-2310}, url={http://dx.doi.org/10.1016/j.atmosenv.2013.01.044}, DOI={10.1016/j.atmosenv.2013.01.044}, journal={Atmospheric Environment}, publisher={Elsevier BV}, author={Shah, Sanjay B. and Grimes, Jesse L. and Oviedo-Rondón, Edgar O. and Westerman, Philip W.}, year={2014}, month={Aug}, pages={576–583} }
 @article{shah_oviedo-rondon_grimes_westerman_campeau_2013, title={Acidifier dosage effects on inside ammonia concentrations in roaster houses}, volume={29}, DOI={10.13031/aea.29.9904}, number={4}, journal={Applied Engineering in Agriculture}, author={Shah, Sanjay and Oviedo-Rondon, E. O. and Grimes, J. L. and Westerman, P. W. and Campeau, D.}, year={2013}, pages={573–580} }
 @article{shah_westerman_grimes_oviedo-rondon_campeau_2013, title={Ancillary effects of different acidifier application rates in roaster houses}, volume={22}, ISSN={1056-6171 1537-0437}, url={http://dx.doi.org/10.3382/japr.2012-00693}, DOI={10.3382/japr.2012-00693}, number={3}, journal={The Journal of Applied Poultry Research}, publisher={Oxford University Press (OUP)}, author={Shah, S. B. and Westerman, P. W. and Grimes, J. L. and Oviedo-Rondon, E. O. and Campeau, D.}, year={2013}, month={Sep}, pages={565–573} }
 @article{oviedo-rondon_shah_grimes_westerman_campeau_2013, title={Live performance of roasters raised in houses receiving different acidifier application rates}, volume={22}, ISSN={1056-6171 1537-0437}, url={http://dx.doi.org/10.3382/japr.2012-00716}, DOI={10.3382/japr.2012-00716}, number={4}, journal={The Journal of Applied Poultry Research}, publisher={Oxford University Press (OUP)}, author={Oviedo-Rondon, E. O. and Shah, S. B. and Grimes, J. L. and Westerman, P. W. and Campeau, D.}, year={2013}, month={Nov}, pages={922–928} }
 @article{shah_grimes_oviedo-rondon_westerman_campeau_2013, title={Nitrogen mass balance in commercial roaster houses receiving different acidifier application rates}, volume={22}, ISSN={["1537-0437"]}, DOI={10.3382/japr.2012-00704}, number={3}, journal={JOURNAL OF APPLIED POULTRY RESEARCH}, author={Shah, S. B. and Grimes, J. L. and Oviedo-Rondon, E. O. and Westerman, P. W. and Campeau, D.}, year={2013}, month={Sep}, pages={539–550} }
 @article{yao_shah_willits_westerman_li_marshall_2011, title={Ammonia emissions from broiler cake stockpiled in a naturally ventilated shed}, volume={54}, DOI={10.13031/2013.39830}, number={5}, journal={Transactions of the ASABE}, author={Yao, H. and Shah, Sanjay and Willits, D. H. and Westerman, P. W. and Li, L. W. and Marshall, T. K.}, year={2011}, pages={1893–1904} }
 @inproceedings{westerman_bowers_zering_2010, title={Phosphorus recovery from covered digester effluent with a continuous-flow struvite crystallizer}, volume={26}, DOI={10.13031/2013.29471}, number={1}, booktitle={Applied Engineering in Agriculture}, author={Westerman, P. W. and Bowers, K. E. and Zering, Kelly}, year={2010}, pages={153–161} }
 @inproceedings{westerman_ogejo_grabow_2010, title={Swine anaerobic lagoon nutrient concentration variation with season, lagoon level, and rainfall}, volume={26}, DOI={10.13031/2013.29472}, number={1}, booktitle={Applied Engineering in Agriculture}, author={Westerman, P. W. and Ogejo, J. A. and Grabow, G. L.}, year={2010}, pages={147–152} }
 @article{shah_balla_grabow_westerman_bailey_2009, title={Impact of land application method on ammonia loss from hog lagoon effluent}, volume={25}, DOI={10.13031/2013.29236}, number={6}, journal={Applied Engineering in Agriculture}, author={Shah, Sanjay and Balla, B. K. and Grabow, G. L. and Westerman, P. W. and Bailey, D. E.}, year={2009}, pages={963–973} }
 @article{shah_westerman_munilla_adcock_baughman_2008, title={Design and evaluation of a regenerating scrubber for reducing animal house emissions}, volume={51}, DOI={10.13031/2013.24217}, number={1}, journal={Transactions of the ASABE}, author={Shah, Sanjay and Westerman, P. W. and Munilla, R. D. and Adcock, M. E. and Baughman, G. R.}, year={2008}, pages={243–250} }
 @article{blunden_aneja_westerman_2008, title={Measurement and analysis of ammonia and hydrogen sulfide emissions from a mechanically ventilated swine confinement building in North Carolina}, volume={42}, ISSN={["1352-2310"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-41449109456&partnerID=MN8TOARS}, DOI={10.1016/j.atmosenv.2007.06.040}, number={14}, journal={ATMOSPHERIC ENVIRONMENT}, author={Blunden, Jessica and Aneja, Viney P. and Westerman, Phillip W.}, year={2008}, month={Apr}, pages={3315–3331} }
 @misc{griffing_overcash_westerman_2007, title={A review of gaseous ammonia emissions from slurry pits in pig production systems}, volume={97}, ISSN={["1537-5110"]}, DOI={10.1016/j.biosystemseng.2007.02.012}, number={3}, journal={BIOSYSTEMS ENGINEERING}, author={Griffing, E. M. and Overcash, M. and Westerman, P.}, year={2007}, month={Jul}, pages={295–312} }
 @article{saliling_westerman_losordo_2007, title={Wood chips and wheat straw as alternative biofilter media for denitrification reactors treating aquaculture and other wastewaters with high nitrate concentrations}, volume={37}, ISSN={["1873-5614"]}, DOI={10.1016/j.aquaeng.2007.06.003}, number={3}, journal={AQUACULTURAL ENGINEERING}, author={Saliling, Willie Jones B. and Westerman, Philip W. and Losordo, Thomas M.}, year={2007}, month={Nov}, pages={222–233} }
 @article{shah_grabow_westerman_2006, title={Ammonia adsorption in five types of flexible tubing materials}, volume={22}, DOI={10.13031/2013.22253}, number={6}, journal={Applied Engineering in Agriculture}, author={Shah, Sanjay and Grabow, G. L. and Westerman, P. W.}, year={2006}, pages={919–923} }
 @misc{shah_westerman_arogo_2006, title={Measuring ammonia concentrations and emissions from agricultural land and liquid surfaces: A review}, volume={56}, ISSN={["2162-2906"]}, DOI={10.1080/10473289.2006.10464512}, number={7}, journal={JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION}, author={Shah, Sanjay B. and Westerman, Philip W. and Arogo, Jactone}, year={2006}, month={Jul}, pages={945–960} }
 @misc{bowers_westerman_2006, title={Method for removing phosphorus from waste lagoon effluent}, volume={7,005,072}, publisher={Washington, DC: U.S. Patent and Trademark Office}, author={Bowers, K. E. and Westerman, P. W.}, year={2006} }
 @article{bowers_westerman_2005, title={Design of cone-shaped fluidized bed struvite crystallizers for phosphorus removal from wastewater}, volume={48}, DOI={10.13031/2013.18504}, number={3}, journal={Transactions of the ASAE}, author={Bowers, K. E. and Westerman, P. W.}, year={2005}, pages={1217–1226} }
 @article{westerman_bicudo_2005, title={Management considerations for organic waste use in agriculture}, volume={96}, ISSN={["1873-2976"]}, DOI={10.1016/j.biortech.2004.05.011}, number={2}, journal={BIORESOURCE TECHNOLOGY}, author={Westerman, PW and Bicudo, JR}, year={2005}, month={Jan}, pages={215–221} }
 @article{westerman_arogo_2005, title={On-farm performance of two solids/liquid separation systems for flushed swine manure}, volume={21}, DOI={10.13031/2013.18566}, number={4}, journal={Applied Engineering in Agriculture}, author={Westerman, P. W. and Arogo, J.}, year={2005}, pages={707–717} }
 @article{westerman_arogo_2005, title={Performance of a pond aeration system for treating anaerobic swine lagoon effluent}, volume={21}, DOI={10.13031/2013.18452}, number={3}, journal={Applied Engineering in Agriculture}, author={Westerman, P. W. and Arogo, J.}, year={2005}, pages={505–516} }
 @article{bowers_westerman_2005, title={Performance of cone-shaped fluidized bed struvite crystallizers in removing phosphorus from wastewater}, volume={48}, DOI={10.13031/2013.18523}, number={3}, journal={Transactions of the ASAE}, author={Bowers, K. E. and Westerman, P. W.}, year={2005}, pages={1227–1234} }
 @article{arogo_westerman_heber_2003, title={A  review of ammonia emissions from confined swine feeding operations}, volume={46}, DOI={10.13031/2013.13597}, number={3}, journal={Transactions of the ASAE}, author={Arogo, J. and Westerman, P. W. and Heber, A. J.}, year={2003}, pages={805–817} }
 @article{arogo_westerman_liang_2003, title={Comparing ammonium ion dissociation constant in swine anaerobic lagoon liquid and deionized water}, volume={46}, DOI={10.13031/2013.15441}, number={5}, journal={Transactions of the ASAE}, author={Arogo, J. and Westerman, P. W. and Liang, Z. S.}, year={2003}, pages={1415–1419} }
 @article{de visscher_harper_westerman_liang_arogo_sharpe_van cleemput_2002, title={Ammonia emissions from anaerobic swine lagoons: Model development}, volume={41}, DOI={10.1175/1520-0450(2002)041<0426:aefasl>2.0.co;2}, number={4}, journal={Journal of Applied Meteorology}, author={De Visscher, A. and Harper, L. A. and Westerman, P. W. and Liang, Z. and Arogo, J. and Sharpe, R. R. and Van Cleemput, O.}, year={2002}, pages={426–433} }
 @article{westerman_bicudo_2002, title={Application of mixed and aerated pond for nitrification and denitrification of flushed swine manure}, volume={18}, DOI={10.13031/2013.8598}, number={3}, journal={Applied Engineering in Agriculture}, author={Westerman, P. W. and Bicudo, J. R.}, year={2002}, pages={351–358} }
 @article{liang_westerman_arogo_2002, title={Modeling ammonia emission from swine anaerobic lagoons}, volume={45}, DOI={10.13031/2013.8859}, number={3}, journal={Transactions of the ASAE}, author={Liang, Z. S. and Westerman, P. W. and Arogo, J.}, year={2002}, pages={787–798} }
 @article{hill_kantardjieff_sobsey_westerman_2002, title={Reduction of enteric microbes in flushed swine wastewater treated by a biological aerated filter and UV irradiation}, volume={74}, ISSN={["1061-4303"]}, DOI={10.2175/106143002X139785}, number={1}, journal={WATER ENVIRONMENT RESEARCH}, author={Hill, VR and Kantardjieff, A and Sobsey, MD and Westerman, PW}, year={2002}, pages={91–99} }
 @article{arogo_westerman_2000, title={Conceptual model for ammonia and odor production and ammonia emission from swine anaerobic lagoons}, ISBN={1892769123}, journal={Air pollution from agricultural operations : proceedings of the 2nd international conference, October 9-11, 2000, Des Moines, Iowa}, publisher={St. Joseph, Mich. : American Society of Agricultural Engineers}, author={Arogo, J. and Westerman, P. W.}, year={2000}, pages={132} }
 @article{classen_young_bottcher_westerman_2000, title={Design and analysis of a pilot scale biofiltration system for odorous air}, volume={43}, DOI={10.13031/2013.2675}, number={1}, journal={Transactions of the ASAE}, author={Classen, John and Young, J. S. and Bottcher, R. W. and Westerman, P. W.}, year={2000}, pages={111–117} }
 @article{westerman_bicudo_2000, title={Tangential flow separation and chemical enhancement to recover swine manure solids, nutrients and metals}, volume={73}, ISSN={["0960-8524"]}, DOI={10.1016/S0960-8524(99)00148-0}, number={1}, journal={BIORESOURCE TECHNOLOGY}, author={Westerman, PW and Bicudo, JR}, year={2000}, month={May}, pages={1–11} }
 @article{westerman_bicudo_kantardjieff_2000, title={Upflow biological aerated filters for the treatment of flushed swine manure}, volume={74}, ISSN={["0960-8524"]}, DOI={10.1016/S0960-8524(00)00028-6}, number={3}, journal={BIORESOURCE TECHNOLOGY}, author={Westerman, PW and Bicudo, JR and Kantardjieff, A}, year={2000}, month={Sep}, pages={181–190} }
 @article{bicudo_safley_westerman_1999, title={Nutrient content and sludge volumes in single-cell recycle anaerobic swine lagoons in North Carolina}, volume={42}, DOI={10.13031/2013.13256}, number={4}, journal={Transactions of the ASAE}, author={Bicudo, J. R. and Safley, L. M. and Westerman, P. W.}, year={1999}, pages={1087–1093} }
 @article{westerman_zhang_1997, title={Aeration of livestock manure slurry and lagoon liquid for odor control: a review}, volume={13}, DOI={10.13031/2013.21596}, number={2}, journal={Applied Engineering in Agriculture}, author={Westerman, P. W. and Zhang, R. H.}, year={1997}, pages={245–249} }
 @article{twarowska_westerman_losordo_1997, title={Water treatment and waste characterization evaluation of an intensive recirculating fish production system}, volume={16}, DOI={10.1016/S0144-8609(96)01022-9}, number={3}, journal={Aquacultural Engineering}, author={Twarowska, J. G. and Westerman, P. W. and Losordo, T. M.}, year={1997}, pages={133–147} }
 @article{westerman_losordo_wildhaber_1996, title={Evaluation of various biofilters in an intensive recirculating fish production facility}, volume={39}, DOI={10.13031/2013.27556}, number={2}, journal={Transactions of the ASAE}, author={Westerman, P. W. and Losordo, T. M. and Wildhaber, M. L.}, year={1996}, pages={723} }
 @article{westerman_huffman_feng_1995, title={Swine-lagoon seepage in sandy soil}, volume={38}, DOI={10.13031/2013.28002}, number={6}, journal={Transactions of the ASAE}, author={Westerman, P. W. and Huffman, R. L. and Feng, J. S.}, year={1995}, pages={1749} }
 @article{westerman_overcash_evans_king_burns_cummings_1985, title={SWINE LAGOON EFFLUENT APPLIED TO COASTAL BERMUDAGRASS .3. IRRIGATION AND RAINFALL RUNOFF}, volume={14}, ISSN={["0047-2425"]}, DOI={10.2134/jeq1985.00472425001400010004x}, number={1}, journal={JOURNAL OF ENVIRONMENTAL QUALITY}, author={WESTERMAN, PW and OVERCASH, MR and EVANS, RO and KING, LD and BURNS, JC and CUMMINGS, GA}, year={1985}, pages={22–25} }
 @article{westerman_burns_king_evans_safley_1983, title={Effects of applying swine lagoon effluent to Coastal Bermudagrass at high rates for ten years}, number={2123}, journal={Paper (American Society of Agricultural Engineers)}, author={Westerman, P. W. and Burns, J. C. and King, L. D. and Evans, R. O. and Safley, L. M.}, year={1983}, pages={32} }
 @inbook{westerman_overcash_1981, title={Short-term attenuation of runoff pollution potential for land-applied swine and poultry manure}, ISBN={9780916150297}, booktitle={Livestock waste, a renewable resource : proceedings / 4th International Symposium on Livestock Wastes, 1980, April 15-17, 1980, Amarillo Civic Center, Amarillo, Texas}, publisher={St. Joseph, Mich.: American Society of Agricultural Engineers}, author={Westerman, P. W. and Overcash, M. R.}, year={1981}, pages={289} }