[1]
R. S. Ott, T. F. Lock, B. O. Brodie, M. A. Memon, and M. E. Mansfield, “Estrus synchronization of beef cows with a palpable corpus luteum using PGF2α”, Bov. pract., vol. 1981, no. 16, pp. 69–70, Nov. 1981.