Rescue of infectious SV40 after fusion between dfferent SV 40-transformed cells. Knowles, Barbara B. ; Jensen, Fred C. ; Steplewski, Zenon ; Koprowski, Hilary Abstract Publication: Proceedings of the National Academy of Science Pub Date: September 1968 DOI: 10.1073/pnas.61.1.42 Bibcode: 1968PNAS...61...42K