1. Mackay, R. L. & Consigli, R. A. J. Virol. 19, 620–636 (1976).
2. Tooze, J. DNA Tumor Viruses (Cold-Spring Harbor Laboratory, New York, 1981).
3. Consigli, R. A., Griffith, G. R., Marriott, S. J. & Ludlow, J. W. in Virus Attachment and Entry Into Cells (eds Crowell, R. L. & Lonberg-Holm, K.) 44–53 (American Society for Microbiology Washington, DC, 1986).
4. Rayment, I., Baker, T. S., Caspar, D. L. D. & Murakami, W. T. Nature 295, 110–115 (1982).
5. Dilworth, S. M. et al. EMBO J. 5, 491–499 (1986).