M. G. M. Chacur, M. G. R. de Souza, C. D. de Souza, and C. P. Cremasco, “Effect of Oral Administration of Selenium and Vitamin E on the Quality of Fresh, Refrigerated and Frozen Semen in French Bulldog Breed Dogs”, Acta Scientiae Vet., vol. 45, no. 1, p. 7, Jan. 2017.