1. Artificial insemination of chickens with semen diluted in Ringer solution;Bonnier;7th World’s Poult. Congr.,1939
2. Effects of dilution on fertilizing capacity of rabbit spermatozoa;Chang;Science,1946
3. A note on a collection apparatus for avian semen;Cooper;Vet. Rec.,1955
4. Cooper, D. M., 1955b, Unpublished, data.
5. Laboratory prediction of the fertilizing capacity of cock semen;Cooper;Poultry Sci.,1957