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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. 2003, 14, 223-228.