1. The Semen of Animals and its Use for Artificial Insemination;Anderson,1945
2. The Activity of Ram Spermatozoa;Rothschild;J. Exp. Biol.,1948
3. Testing Fertility in Bulls;Cummings;Tech. Bull. Minn. Agric. Exp. Sta.,1954
4. Semen Characterization and Fertility in the Bull;Bishop;J. Agric. Sci.,1954
5. On the Evaluation of Bull Semen with Special Reference to its Employment for Artificial Insemination;Blom,1950