Vélez-Rodríguez, Lorraine, and Lydia I. Rivera-Vargas. “Recent Studies of Fungal Pathogens of Onion in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico, vol. 91, no. 1-2, Apr. 2007, pp. 31-45, doi:10.46429/jaupr.v91i1-2.2651.