1. Bailiss, K. W., Brunt, A. A., and Dale, W. T., 1975, The natural occurrence of broad bean wilt virus in rhizomatous iris and spinach, Plant Pathol. 24:60.
2. Barbara, D. J., Ashby, S. C., and McNamara, D. G., 1985, Host range, purification and some properties of rubus Chinese seed-borne virus, Ann. Appl. Biol. 107:45.
3. Boccardo, G., and Conti, M., 1973, Purification and properties of nasturtium ringspot virus, Phytopathol. Z. 78:14.
4. Bruckart, W. L., and Lorbeer, J. W., 1976, Cucumber mosaic virus in weed hosts near commercial fields of lettuce and celery, Phytopathology 66:253.
5. Bruening, G., 1978, Comovirus group, CMI/AAB Descriptions of Plant Viruses No. 199.