1. The stability of carotene;Bauman;J. Biol. Chem.,1933
2. Studies in vitamin A avitaminosis in the chick;Elvehjem;J. Biol. Chem.,1932
3. Effect of storage on vitamin A in dried foods;Fraps;Ind. Eng. Chem.,1933
4. Vitamin A content of foods and feeds;Fraps;Texas Agr. Exp. Sta. Bul.,1933
5. Losses of vitamin A and carotene from feeds during storage;Fraps;Texas Agr. Exp. Sta. Bul.,1937