1. Ahola, H., Stenlund, A., Moreno-López, J., and Pettersson, U., 1983, Sequences of bovine papillomavirus type 1 DNA—Functional and evolutionary implications, Nucleic Acids Res. 11: 2639–2650.
2. Beard, J. W., and Rous, P., 1935, Effectiveness of the Shope papilloma virus in various American rabbits, Proc. Soc. Exp. Biol. Med. 33: 191–193.
3. Breedis, C., Berwick, L., and Anderson, T., 1962, Fractionation of Shope papilloma virus in cesium chloride density gradients, Virology 17: 84–94.
4. Chardonnet, Y., Greenland, T., Lyon, M., and Sohier, R., 1978, Interactions of the Shope papilloma virus with some other DNA viruses, Bull. Cancer 65: 195–206.
5. Chen, E. Y., Howley, P. M., Levinson, A. D., and Seeburg, P. H., 1982, The primary structure and genetic organization of the bovine papillomavirus type 1 genome, Nature 299: 529–534.