E. S. Gale, Sullivan, D. M., Cogger, C. G., Bary, A. I., Hemphill, D. D., and Myhre, E. A.,
“Estimating Plant-Available Nitrogen Release from Manures, Composts, and Specialty Products”,
Journal of Environment Quality, vol. 35, no. 6, p. 2321, 2006.
F. J. Larney, Sullivan, D. M., Buckley, K. E., and Eghball, B.,
“The role of composting in recycling manure nutrients”,
Canadian Journal of Soil Science, vol. 86, no. 4, pp. 597 - 611, 2006.