1. C. Apffel, J. Walker andS. Issarescu Tumor Rejection in Experimental Animals Treated with Radioprotective Thiols. Cancer Research35 429 (1975).
2. M. L. Fenner andJ. Braven The mechanism of carcinogenesis by tobacco smoke. Further experimental evidence and a prediction from the thiol-defence hypothesis. Brit. Journ. Cancer22 474 (1968).
3. D. Hoffmann and J. Vals: Analysis of volatile N-nitrosamines in unaged mainstream smoke of cigarettes. Paper presented at the 25th Tobacco Chemists' Research Conference, Louisville, Ky, USA, October 6–8, 1971.
4. P. D. Jocelyn Biochemistry of the SH group. Academic Press, London, New York 1972, pp. 1–404.
5. G. Kallistros Verhinderung der 3,4-benzopyrene-Karzinogenese durch natürliche und synthetische Verbindungen. Münch. med. Wschr.117 391 (1975).