Crespo, G., T. E. Ruiz, and J. ?lvarez. “Effect of Green Manure from Tithonia (T. Diversifolia) on the Establishment and Production of Forage of P. Purpureum Cv. Cuba CT-169 and on Some Soil Properties”. Cuban Journal of Agricultural Science, vol. 45, no. 1, Mar. 2011, https://cjascience.com/index.php/CJAS/article/view/191.