1. Ovarian development in calves;Casida;J. Agric. Res.,1935
2. Ultrasonographic appearance of the bovine conceptus on days 10 through 20;Curran;J. Am. Vet. Med. Assoc.,1986
3. Ultrasonographic appearance of the bovine conceptus on days 20 through 60;Curran;J. Am. Vet. Med. Assoc.,1986
4. Corpus luteum action on ovarian follicular development after destruction of macroscopically visible follicles in ewes;Dufour,1971
5. Intraovarian relationship between corpora lutea and ovarian follicles in ewes;Dufour;Am. J. Vet. Res.,1972