ESPINOSA-CALDERÓN, A.; GÓMEZ, N.; SIERRA, M.; BETANZOS, E.; CABALLERO, F.; COUTIÑO, B.; PALAFOX, A.; RODRÍGUEZ, F.; GARCÍA, A.; CANO, O. Technology and seed production of maize hybrids and open pollinated varieties of quality protein maize (QPM) in Mexico. Agronomía Mesoamericana, [S. l.], v. 14, n. 2, p. 223–228, 2003. DOI: 10.15517/am.v14i2.11952. Disponível em: https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11952. Acesso em: 4 feb. 2023.