1. Blood progesterone concentrations in pregnant and nonpregnant mares;Allen;Eq. Vet. J.,1974
2. Estrus, ovulation, and related phenomena in the mare;Andrews;Mo. Agric. Exp. Sta. Bull.,1941
3. The ovary of the mare in health and disease;Arthur;Eq. Vet. J.,1969
4. Postovulation breeding and related reproductive phenomena in the mare;Belling;Eq. Pract.,1984
5. Mare is a four-letter word;Butterfield;Vet. Rec.,1970