De León-García, R., R. González-M., P. Guerra-M., and J. Jaén. “MULTIPLE PREGNANCY BY TRANSFER OF AN in Vitro EMBRYO IN PREVIOUSLY INSEMINATED COWS”. Ciencia Agropecuaria, no. 39, July 2024, pp. 45-58, http://200.46.165.126/index.php/ciencia-agropecuaria/article/view/650.