1. Sperm penetration into a hyaluronic acid polymer as a means of monitoring functional competence;Aitken;J Androl,1992
2. Preservation of the male gamete (bull, stallion, dog);Amann,1984
3. How a bull works;Amann,1988
4. Relationships between computerized evaluations of spermatozoal motion and competitive fertility index;Amann,1988
5. Treatment of sperm to predetermine sex;Amann;Theriogenology,1989