Waterworth, H E CARNA 5, the Small Cucumber Mosaic Virus--Dependent Replicating RNA, Regulates Disease Expression. [electronic resource] - Science (New York, N.Y.) May 1979 - 845-7 p. digital Publication Type: Journal Article ISSN: 0036-8075 Standard No.: 10.1126/science.204.4395.845 doi