1. Behncken, Aust. J. agric. Res. 21: 465, 1970.
2. Behncken & McCarthy, Qd. agric. J. 99: 635, 1973.
3. Bock, Ann. appl. Biol. 74: 171, 1973.
4. Brunt, CMI/AAB Descriptions of Plant Viruses 140, 4 pp., 1974.
5. Cooper, Phytopathology 40: 6, 1950.
6. Herold & Munz, Phytopathology 59: 663, 1969.
7. Ie, CMI/AAB Descriptions of Plant Viruses 39, 4pp., 1970.
8. Inouye, Nogaku Kenkyu 52: 159, 1969.
9. Kuhn, Phytopathology 55: 880, 1965.
10. Mink, CMI/AAB Descriptions of Plant Viruses 92, 4 pp., 1972.
11. Paguio & Kuhn, Phytopathology 63: 976, 1973a.
12. Paguio & Kuhn, Phytopathology 63: 720, 1973b.
13. Schmidt & Schmelzer, Phytopath. Z. 55: 92, 1966.
14. Storey & Ryland, Ann. appl. Biol. 43: 423, 1955.
15. Sun & Hebert, Phytopathology 62: 832, 1972.
16. Ting, Geh & Chuan, Expl Agric. 8: 355, 1972.