1.
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. Agron. Mesoam. [Internet]. 2003Sep.19 [cited 2023Feb.3];14(2):223-8. Available from: https://revistas.ucr.ac.cr/index.php/agromeso/article/view/11952