Williams, C.M., and S.S. Schiffman. 1996. Effect of liquid swine manure additives on odor parameters. Pp. 409-412 in International Conference on Air Pollution from Agricultural Operations. Kansas City, Mo.: American Society of Agricultural Engineers.
Williams, C.M. 2001. Environmentally Superior Waste Management Technologies. In the Proceedings of the Agricultural Outlook Forum.
Williams, D.L., P. Ineson, and P.A. Coward. 1999. Temporal variations in nitrous oxide fluxes from urine-affected grassland. Soil Biology and Biochemistry 31:779-788.
Williams, E.J., A. Guenthre, and F.C. Fehsenfeld. 1992a. An inventory of nitric oxide emissions from soils in the United States. Journal of Geophysical Research 97:7511-7519.
Williams, E.J., S.T. Sandholm, J.D. Bradshaw, J.S. Schendel, A.O. Langford, P.K. Quinn, P.J. Lebel, S.A. Vay, P.D. Roberts, R.B. Norton, B.A. Watkins, M.P. Buhr, D.D. Parrish, J.G. Calvert, and F.C. Fehsenfeld. 1992b. An intercomparison of five ammonia measurement techniques. Journal of Geophysical Research-Atmospheres 97:11591-11611.
Wing, S., and S. Wolf. 2000. Intensive livestock operations, health, and quality of life among eastern North Carolina residents. Environmental Health Perspectives 108:233-238.
Wolynetz, M.S., and I.R. Sibbald. 1986. Relationships among major body components of broiler chicks. Poultry Science 65:2324-2329.
Wood, S.L., K.A. Janni, C.J. Clanton, D.R. Schmidt, L.D. Jacobson, and S. Weisberg. 2001. Odor and air emissions from animal production systems. Paper No. 014043 presented at American Society for Agricultural Engineers Annual International Meeting. Sacramento, Ca.
Yamulki, S., S.C. Jarvis, and P. Owen. 1998. Nitrous oxide emissions from excreta applied in a simulated grazing pattern. Soil Biology and Biochemistry 30:491-500.
Yienger, J.J., and H. Levy II. 1995. Empirical model of soil biogenic NOx emissions. Journal of Geophysical Research 100:11447-11464.
Zahn, J.A., J.L. Hatfield, Y.S. Do, A.A. DiSpirito, D.A. Laird, and R.L. Pfeiffer. 1997. Characterization of volatile organic emissions and wastes from a swine production facility. Journal of Environmental Quality 26:1687-1696.
Zahn, J.A., A.E. Tung, B.A. Roberts, and J.L. Hatfield. 2001. Abatement of ammonia and hydrogen sulfide emissions from a swine lagoon using a polymer biocover. Journal of the Air and Waste Management Association 51:562-573.
Zahn, J.A., A.E. Tung, and B.A. Roberts. 2002. Continuous ammonia and hydrogen sulfide emission measurement over a period of four seasons from a central Missouri swine lagoon. In ASAE Paper No: 024080 presented at American Society of Agricultural Engineers Annual International Meeting/CIGR XVth World Congress, Chicago, Ill., July 28-31.
Zering, K. 1998. Comparing costs of environmental systems. In Extension Swine Educators and Adult Educators Conference. National Pork Producers Council, Des Moines, Iowa.
Zering, K. 1999. Economic Considerations in Manure Management. In Proceedings of Animal Residuals Management Conference. Water Environment Federation, Alexandria, Va. 15 pp.
Zhang, R., and P.W. Westerman. 1995. Solid-liquid separation for animal waste. Pp. 228-233 in Proceedings of International Livestock Odor Conference 1995. Iowa State University, Ames, Iowa.
Zhang, R.H., D.L. Day, L.L. Christianson, and W.P. Jepson. 1994. A computer model for predicting ammonia release rate from swine manure pits. Journal of Agricultural Engineering 58:223-229.
Zhu, J., L.D. Jacobson, D.R. Schmidt, and R.E. Nicolai. 1999. Daily Variation in Odor and Gas Emissions from Animal Facilities. ASAE Paper No. 99-4146. St. Joseph, Mich.: American Society of Agricultural Engineers.
Zhu, J., L. Jacobson, D. Schmidt, and R. Nicolai. 2000. Daily variations in odor and gas emissions from animal facilities. American Society of Agricultural Engineers 16:153-158.