1. Barker, M., Hoshino, T., Gurcay, O., Wilson, C. B., Nielsen, S. L., Downie, R., Eliason, J.: Development of an animal brain tumor model and its response to therapy with 1,3-Bis(2-chloroethyl)-1 nitrosourea. Cancer Res.33, 976?986 (1973)
2. Benda, P., Lightbody, J., Sato, G., Levine, L., Sweet, W.: Differentiated rat glial cell strain in tissue culture. Science161, 370?371 (1968)
3. Dethlefsen, L. A., Prewitt, J. M. S., Mendelsohn, M. L.: Analysis of tumor growth curves. J. nat. Cancer Inst.40, 389?405 (1968)
4. Druckrey, H., Ivankovic, S., Preussmann, R., Zülch, K. J., Mennel, II. D.: Selective induction of malignant tumors of the nervous system by resorptive carcinogens. In: Kirsch, W. M., Grossi-Paoletti, E., Paoletti, P. (Eds.) The experimental biology of brain tumors. Springfield/Ill.: Charles C. Thomas Publ. 1972
5. Druckrey, H., Kupfmüller, K., Trappe, W.: Experimentelle Beiträge zum Wachstumsproblem bei Geschwülsten und Metastasen. Z. Krebsforsch.56, 407 (1949)