“EFFECT OF TWO GRAZING PERIODS ON THE PERFORMANCE OF BULLS USING A SEMICONFINED PRODUCTION SYSTEM. LOS SANTOS, PANAMA”. 2005. Ciencia Agropecuaria, no. 19 (August): 35-46. https://idiap.desarrollo-ojs1.metadatos.org/index.php/ciencia-agropecuaria/article/view/249.