1. Bodine & Newton, Phytopathology 32: 333, 1942.
  2. Bodine, Blodgett & Lott, Handb. U.S. Dept. Agric. 10: 71-80, 1951.
  3. Hansen, Nyland, McElroy & Stace-Smith, Phytopathology 64: 721, 1974.
  4. Lott & Keane, Pl. Dis. Reptr 44: 634, 1960.
  5. Luepschen, Harder, Rohrback & Sisson, Pl. Dis. Reptr 58: 26, 1974.
  6. Nyland, Lownsbery, Lowe & Mitchell, Phytopathology 59: 1111, 1969.
  7. Parish & Cheney, Proc. Am. phytopath. Soc. 1: 52, 1974.
  8. Stace-Smith & Hansen, Acta Hort. 67: 193, 1976.
  9. Wagnon, Traylor, Williams & Weiner, Pl. Dis. Reptr 52: 618, 1968.