@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{safley_1994, title={Best management practices for livestock production}, volume={49}, number={2}, journal={Journal of Soil & Water Conservation}, author={Safley, L. M., Jr.}, year={1994}, pages={57} }
 @article{safley_westerman_1994, title={Low-temperature digestion of dairy and swine manure}, volume={47}, DOI={10.1016/0960-8524(94)90116-3}, number={2}, journal={Bioresource Technology}, author={Safley, L. M. and Westerman, P. W.}, year={1994}, pages={165} }
 @article{safley_westerman_kim_carr_1992, title={Corrosion of galvanized steel in animal waste environments}, volume={40}, DOI={10.1016/0960-8524(92)90119-I}, number={1}, journal={Bioresource Technology}, author={Safley, L. M. and Westerman, P. W. and Kim, M. M. and Carr, D. S.}, year={1992}, pages={53} }
 @article{safley_barker_westerman_1992, title={Loss of nitrogen during sprinkler irrigation of swine lagoon liquid}, volume={40}, DOI={10.1016/0960-8524(92)90112-B}, number={5}, journal={Bioresource Technology}, author={Safley, L. M. and Barker, J. C. and Westerman, P. W.}, year={1992}, pages={7} }
 @article{safley_westerman_1992, title={Performance of a dairy manure anaerobic lagoon}, volume={42}, DOI={10.1016/0960-8524(92)90086-D}, number={1}, journal={Bioresource Technology}, author={Safley, L. M. and Westerman, P. W.}, year={1992}, pages={43} }
 @article{safley_westerman_1992, title={Performance of a low temperature lagoon digester}, volume={41}, DOI={10.1016/0960-8524(92)90188-4}, number={2}, journal={Bioresource Technology}, author={Safley, L. M. and Westerman, P. W.}, year={1992}, pages={167} }
 @article{safley_westerman_1990, title={Psychrophilic anaerobic digestion of animal manure: Proposed design methodology}, volume={34}, DOI={10.1016/0269-7483(90)90014-J}, number={2}, journal={Biological Wastes}, author={Safley, L. M. and Westerman, P. W.}, year={1990}, pages={133} }
 @article{safley_westerman_king_1989, title={Effects of dairy manure application rate and timing, and injector spacing and type on corn silage production}, volume={28}, DOI={10.1016/0269-7483(89)90084-0}, number={3}, journal={Biological Wastes}, author={Safley, L. M. and Westerman, P. W. and King, L. D.}, year={1989}, pages={203} }
 @article{safley_nelson_westerman_1983, title={Conserving manurial nitrogen}, volume={26}, DOI={10.13031/2013.34098}, number={4}, journal={Transactions of the ASAE}, author={Safley, L. M. and Nelson, D. W. and Westerman, P. W.}, year={1983}, pages={1166} }