1. Andervont, H. B., Th. B. Dunn andH. Y. Canter: Susceptibility of Agent-Free Inbred Mice and Their F1 Hybrids to Estrogen-Induced Mammary Tumors. J. nat. Cancer Inst.21, 783?811 (1958).
2. Cloudman, A.: Spontaneous Neoplasms in Mice in Snell G. D. (Ed.). Biol. of the Lab. Mouse, p. 228. Dover Publ. N. Y. (1941).
3. Ngowyang, G.: Une tumeur dans la corne d'Ammon chez la souris blanche. Rev. neurol.2, 584?585 (1930).
4. Scherer, H.J.: Vergleichende Pathologie des Nervensystems der Säugetiere. Leipzig: G. Thieme 1944.
5. Slye, M., H. F. Holmes andH.G. Wells: Intracranial neoplasms in lower animals. Amer. J. Cancer15, 1387?1400 (1931).