1. Fertilization time in the bitch in relation to plasma concentration of oestradiol, progesterone and luteinizing hormone and vaginal smears;Badinand;J Reprod Fertil Suppl,1993
2. Coital behavior in dogs. IX. Sequelae to “coitus interruptus” in males and females;Beach;Phys Behav,1970
3. Canine behavior: a guide for veterinarians;Beaver,1999
4. Determination of ovulation time in bitches based on teasing, vaginal cytology and ELISA for progesterone;Bouchard;Theriogenology,1991
5. Long-term study of aerobic bacteria of the genital tract in breeding bitches;Bjurström;Am J Vet Res,1992