“CORN RESPONSE TO DIFERENT LEVELS OF NITROGEN IN ROTATION WITH MUCUNA UNDER TWO TYPES OF TILLAGE. RIO HATO, PANAMA. 1993-1994”. Ciencia Agropecuaria, no. 12, Sept. 2002, pp. 55-70, https://idiap.desarrollo-ojs1.metadatos.org/index.php/ciencia-agropecuaria/article/view/338.