1. Burnet, F. M., and Fenner, F., “The Production of Antibodies” (Melbourne, 1949).
2. Lopashov, G. V., and Stroyeva, O. G., Uspyekhi sovremenoy biol., 30, 234 (1950).
3. Burnet, F. M., Stone, J. D., and Edney, M., Aust. J. Exp. Biol. Med. Sci., 28, 291 (1950).
4. Owen, R. D., Science, 102, 400 (1945).
5. Hašek, M., Ceskoslovenská biologie, 2, 29 and 267 (1953).