Geraets, L. L., M. G. Boersma, and H. H. Stein. 2006. Digestibility of phosphorus in field peas by growing pigs. J. Anim. Sci. 84 (Suppl. 2):116 (Abstr.) Link to abstract (.pdf)
Geraets, L. L., M. G. Boersma, and H. H. Stein. 2005. Site of digestibility of protein and phosphorus by growing pigs fed diets without or with microbial phytase. J. Anim. Sci. 83(Suppl. 1): 389 (Abstr.) Link to abstract (.pdf)