J. L. Ram?rez, R. S. Herrera, I. Leonard, M. Cisneros, D. Verdecia, and Y. ?lvarez, “Relation between climatic factors, yield, and quality of Pennisetum purpureum cv. Cuba CT-169 in the Cauto Valley, Cuba”, Cuban J. Agric. Sci., vol. 45, no. 3, Jun. 2011.