de León, H., Ramírez, E., Martínez, G., Oyervides, A., & de la Rosa, A. (2006). Evaluation of heterotic patterns in developing maize hybrids for middle-altitude regions of Mexico.

de León, Humberto, Ernestor Ramírez, Gaspar Martínez, Arnoldo Oyervides, ja Alfredo de la Rosa. Evaluation of Heterotic Patterns in Developing Maize Hybrids for Middle-altitude Regions of Mexico. 2006.

de León, Humberto, et al. Evaluation of Heterotic Patterns in Developing Maize Hybrids for Middle-altitude Regions of Mexico. 2006.