1. Prenatal development of the bovine;Winters;Univ. Minn. Agric. Exper. Sta., Techn. Bul.,1942
2. Note on the ageing of bovine embryos;Maneely;Vet. Rec.,1952
3. Prenatal development of domestic and laboratory mammals: growth curves, external features and selected references;Evans;Zentbl. Vet. Med.,1973
4. Crown-rump length of fetuses in purebred Holstein-Friesian cows;Rexroad;J. Dairy Sci.,1974
5. Body length, head circumference, and weight of bovine fetuses: prediction of gestational age;Thomsen;J. Dairy Sci.,1974