1. Bolton, Res. Fmrs 10: 14, 1965.
2. Frazier, Phytopathology 45: 307, 1955.
3. Frazier, Pl. Dis. Reptr 44: 436, 1960.
4. Frazier, Phytopathology 56: 64, 1966.
5. Frazier, Pl. Dis. Reptr 58: 203, 1974a.
6. Frazier, Pl. Dis. Reptr 58: 28, 1974b.
7. Frazier & Posnette, Hilgardia 27: 455, 1958.
8. Frazier & Sylvester, Virology 12: 233, 1960.
9. Kitajima, Betti & Costa, J. gen. Virol. 20: 117, 1973.
10. Mellor & Forbes, Can. J. Bot. 38: 343, 1960.
11. Miller & Belkengren, Pl. Dis. Reptr 47: 298, 1963.
12. Miller & Frazier, in Virus Diseases of Small Fruits and Grapevines, p. 8, ed. N. W. Frazier, Univ. of Calif. Div. Agric. Sci., Berkeley, Calif., 1970.
13. Morris, Mullin, Schlegel, Cole & Alosi, Phytopathology 70: 156, 1980.
14. Plakidas, Strawberry Diseases, p. 144, Louisiana State Univ. Press, Baton Rouge, 1964.
15. Prentice, Ann. appl. Biol. 39: 487, 1952.
16. Schöniger, Phytopath. Z. 32: 325, 1958.