1. Weiss, R.A., et al. (eds.): The Molecular Biology of Tumor Viruses, Part III. Cold Spring Harbor Laboratory 1982
2. Lilly, F., Mayer, A., in: Viral Oncology, p. 89 (G. Klein, ed.). New York: Raven 1980
3. Todaro, G.J., et al.: Proc. Roy. Soc. London210, 367 (1980)
4. Rowe, W.P., et al.: Virology46, 866 (1971)
5. Astrin, S., Buss, E.G., Hayward, W.S.: Nature282, 339 (1979)