Leal Labrada, A. A., J. A. Bertot Valdés, M. Horrach Junco, R. Vázquez Montes de Oca, y M. Garay Durba. Association of Disease Outbreak and Reproduction in Cattle Herds. Revista De Producción Animal, Vol. 30, n.º 1, June 2018, pp. 49-53, https://rpa.reduc.edu.cu/index.php/rpa/article/view/2409.