[1. Dontenwill, W.: "Inhalation Carcinogenesisn, U. S.]Search in Google Scholar
[Atomic Energy Commission, 1.970, 389.]Search in Google Scholar
[2. Maddox, W. L., R. B. Quincy, H. H. Ross, G. Olerich, and M. R, Guerin: 25th Tob. Chem. Res.]Search in Google Scholar
[Con£., louisville, Kentucky, October 1.971. ]Search in Google Scholar
[3. Dontenwill, W., H. P. Harke, and A. Baars: Arzneimittel- Forsch. 2.1 (:1971.) 1.42. ]Search in Google Scholar
[4. Holland, R. H., R. H. Wilson, D. Morris, M. S.]Search in Google Scholar
[McCall, and H. C. Lang: Cancer 1.1. (1.958) 709· ]Search in Google Scholar
[5. Jenkins, R. W., Jr., R. H. Newman, R. D. Carpenter, and T. 5. Osdene: Beitr. Tabakforsch. 5 (1.970) 295·]Search in Google Scholar
[6. Houseman, T. H., and E. Heneage: Beitr. Tabakforsch. 7 (:1973) 1.38. 10.2478/cttr-2013-0321]Search in Google Scholar
[7. Houseman, T. H.: Beitr. Tabakforsch. 7 (1.973) 1:42..]Search in Google Scholar
[8. Biittig, K., and V. Hrubes: Z. Praventivmed. 1.6 (1971.) 205. ]Search in Google Scholar
[9. Driscoll, P., and K. Biittig: ibid".-.'16 (197:1) 1.97·]Search in Google Scholar
[10. Rothwell, K., and C. A. Grant: Research Paper 11, Section 3, Tobacco Researdt Council, London :1972.]Search in Google Scholar
