1. The Colorimetric Determination of Lactic Acid in Biological Material;Barker;Jour. Biol. Chem.,1941
2. Rapid Methods for Estimating the Quality of Bull Semen;Beck;Jour. Dairy Sci.,1943
3. Studies of Semen and Semen Production;Comstock;Minn. Agr. Expt. Sta. Tech. Bul.,1943
4. Some Factors Affecting Artificial Insemination in Cattle;Davis;Amer. Soc. Anim. Prod. Proc,1938
5. Semen Studies in the Bull;Dougherty;Amer. Jour. Vet. Res.,1941