Windels Carol E, Lamey H Arthur, Hilde Dave, Widner Jim, Knudsen Tom
Northwest Experiment Station, University of Minnesota, Crookston.
Department of Plant Pathology, North Dakota State University, Fargo.
Plant Dis. 1998 Jul;82(7):716-726. doi: 10.1094/PDIS.1998.82.7.716.