M. Hernández-Pérez, A. López-Benítez, S. A. Rodríguez-Herrera, F. Borrego-Escalante, M. Ramírez-Meraz, and S. R. López Benítez, “Cluster analysis for phenological and yield variables in 15 crosses of pepper”., Agron. Mesoam., vol. 22, no. 1, pp. 45–50, Jun. 2011.