1. Fertility in deep frozen boar spermatozoa;Crabo;Acta Vet. Scand,1971
2. Low temperature preservation of boar spermatozoa;Dalrymple;Canad. J. Anim. Sci,1969
3. The low temperature storage of ram, bull and rabbit spermatozoa;Emmens;Aust. Vet. J,1950
4. Preservation of rabbit spermatozoa: Fertility results from frozen semen;Fox,1961
5. Some factors influencing the freezing of boar spermatozoa;Graham,1972