C. D. MAYEE, M. A. P. A. (2002). RACE IDENTITY OF INDIAN PLASMOPARA HALSTEDll, CAUSE OF DOWNY MILDEW OF SUNFLOWER. Indian Phytopathology, 43(4), 517-519. https://epubs.icar.org.in/index.php/IPPJ/article/view/22673