1. Casida Jr., L. E. (to Chas. Pfizer and Co., Inc.), 1956. U. S. Patent 2,771,396 Nov. 20.
2. Davis, B. D. 1952. Intermediates in the biosynthesis of proline, ornithine, histidine, lysine and the aromatic amino acids. 2nd Congr. intern biochem., Chim. biol. V, Symposium métabolisme microbien (Paris), pp. 32-40.
3. Diaminopimelic acid as lysine precursor in chick diets;Donovan;Poultry Sci.,1957
4. Studies on the mechanism of formaldehyde incorporation into serine;Kisliuk;J. Biol. Chem.,1957
5. The response of Leuconostoc mesenteroides P-60 to some compounds related to lysine;McLaren;J. Biol. Chem.,1953