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- [2] RESISTANCE OF COWPEAS TO COWPEA MOSAIC-VIRUS AND TO TOBACCO RINGSPOT VIRUS CIBA FOUNDATION SYMPOSIA, 1987, 133 : 23 - 37
- [4] INCIDENCE OF SOYBEAN MOSAIC-VIRUS AND TOBACCO RINGSPOT VIRUS IN SOUTHWESTERN ONTARIO CANADIAN PLANT DISEASE SURVEY, 1986, 66 (02): : 49 - 50