1. Okada, Y., in Current Topics in Microbiology and Immunology, 48 (edit. by Arber, W., and Braun, W.), 102–128 (Springer, Berlin, 1969).
2. Poste, G., and Allison, A. C., Biochim. biophys. Acta, 300, 421–465 (1973).
3. Murayama, F., and Okada, Y., Biken's J., 8, 103–105 (1965).
4. Okada, Y., Murayama, F., Expl Cell Res., 44, 527–551 (1966).
5. Poole, A. R., Howell, J. I., and Lucy, J. A., Nature, 227, 810–813 (1970).