Ramírez Oliveras, G., and A. Vélez Báez. “FAILURE TO INFECT SUGARCANE WITH SCLEROSPORA GRAMINICOLA CAUSAL OF DOWNY MILDEW”. The Journal of Agriculture of the University of Puerto Rico, vol. 68, no. 3, July 1984, pp. 313-4, doi:10.46429/jaupr.v68i3.7293.