1. Brcák, Proc. 5th Conf. Czechosl. Pl. Virologists, Prague 1962: 280, 1964.
  2. Brcák & Polák, Meded. Rijksfak. Landbwet. Gent 31: 397, 1966.
  3. Brunt & Stace-Smith, Rep. Glasshouse Crops Res. Inst., 1971: 121, 1972.
  4. Jones, Rep. Scott. hort. Res. Inst., 1969: 58, 1970.
  5. Jones, Ann. appl. Biol. 70: 49, 1972.
  6. Uyemoto & Gilmer, Phytopathology 61: 132, 1971.
  7. Uyemoto, Gilmer & Williams, Pl. Dis. Reptr 55: 913, 1971.
  8. Van Lent, Wit & Dijkstra, Neth. J. Pl. Path. 86: 117, 1980.
  9. Van Oosten, Neth. J. Pl. Path. 78: 33, 1972.
  10. Veerisetty & Brakke, Phytopathology 68: 59, 1978.