V. N. Flores-Gil, R. Velázquez, A. Toledano-Díaz, J. Santiago-Moreno, and A. López-Sebastián, “Short term administration of cyproterone acetate for contraception: Effects on testosterone secretion and semen characteristics in rams (Ovis aries) and bucks (Capra hircus)”, Span. j. agric. res., vol. 18, no. 4, p. e0407, Dec. 2020.