References
- 1. Artho, A. ]., Monroe, R. ]., und Weybrew, ]. A.: Tobacco Science VII (1963) 191
- 2. Horseman, A., und Sharman, C. F.: Tobacco Abstracts 2 (1958) 553,1991
- 3. Lorenz, H. W., und Seehofer, F.: Beitr. Tabakf. 2 (1964) 131
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