1. Carrick, C. W., S. M. Hauge, R. E. Roberts, and C. W. Widaman, 1940. A study of the flavin requirements of growing chicks. Fifty-third Annual Report of Purdue University Agricultural Experiment Station, p. 15.
2. Biotin in chick nutrition;Hegsted;J. Nutrition,1942
3. Studies of unidentified vitamins required by the chick;Hill;J. Nutrition,1944
4. The Lactobacillus casei factors in the nutrition of the chick;Hutchings;J. Biol. Chem.,1946
5. Evidence of new growth factors for chicks;Johnson;Poultry Sci.,1942