1. Anonymous, 1957. Protein requirements.FAO Nutr. Stud. 16. FAO Rome.
2. Anonymous, 1970. Amino acid content of foods and biological data on proteins.FAO Nutr. Stud. 24. FAO, Rome.
3. Anonymous, 1970. Official methods of analyses of AOAC, 11th ed., edited by W. Horowitz. Association Official Analytical Chemists, Washington, p. 16.
4. Chick, H. & M. E. Cutting, 1943. Nutritive value of nitrogenous substances in the potato.Lancet 245: 667–669.
5. Davis, B. J., 1964. Disc electrophoresis II. Method and application to human serum proteins.Ann. N. Y. Acad. Sci. 121: 403–427.