1. Can the fertility potential of a seminal sample be predicted accurately?;Amann;J. Androl,1989
2. In vitro evaluation of sperm quality: An Opinion;Amann;J. Androl.,1993
3. Pregnancy in the mare resulted from frozen epididymal spermatozoa;Barker;Can J Comp Med Vet Sci,1957
4. Cryopreservation of stallion spermatozoa;Graham;Vet Clinics of North Am: Eq. Pract.,1996
5. Fertility of semen frozen for twelve years;Nikishawa,1968