[1. v. Albertini, A., Schweiz. Zschr. Path. Bakt. 21, 773, (1958).10.1159/000160472]Search in Google Scholar
[2. Blacklock, J, W. S., Brit. J, Cancer 11, 181, (1957). 10.1038/bjc.1957.25]Search in Google Scholar
[3. Cuzin, J. L.: pers. Mitteilung. ]Search in Google Scholar
[4. Della Porta, G., Kolb, L., Shubik, P., Cancer Res. 18, 592, (1958). ]Search in Google Scholar
[5. Druckrey, H., Schmäht D., Beuthner, H., und Muth, F., Naturwiss. 47, 605, (1960).10.1007/BF00602227]Search in Google Scholar
[6. Essenberg, J. M., Science, 116, 561, (1952). 10.1126/science.116.3021.561]Search in Google Scholar
[7. Guerin, M., Turneurs spontanees des animaux de laboratoire (souris, tat, poule) Legrand, Paris (1954).]Search in Google Scholar
[8. Guerin, M., Bull. Cancer 46, 295, (1959). 10.1007/BF00599627]Search in Google Scholar
[9. Haag, H. B., Larson, P. S., Weatherby, J. H.,-Ann. New York Acad. Sei., 90, 227, (1960).10.1111/j.1749-6632.1960.tb32637.x]Search in Google Scholar
[10. Klein, U. E., Beitr. Tabakforsch. Heft 2, 55, (1961).]Search in Google Scholar
[11. Kracht, L Klein,. U. E., Baghirzade, M., Verh. Dtsch. Ges. Path. 45, 170, (1961).]Search in Google Scholar
[12. Leuchtenberger, R., Leuchtenberger, C., Dolin, P ~ F., Cancer 11, 490, (1958). Leuchtenberger, R., Leuchtenberger, C., Zebrun, W., Shaffer, P., Acta. Un. int. Cancer 15, 632, (1959).]Search in Google Scholar
[13. Lisco, H., Finkel, M. P., Fed. Proc. 8, 360, (1949).]Search in Google Scholar
[14. Little, C. C., New England. J. Med. 264, 1241, (1961).10.1056/NEJM196106152642406]Search in Google Scholar
[15. Lorenz, E., Stewart, H. L., Daniet J. H., Nelson, C. V., Cancer Res. 3, 123, (1943).]Search in Google Scholar
[16. Mühlbrock, 0., Ned. Tschr. Geenesk. 99, 2276, (1955).]Search in Google Scholar
[17. Niskanen, K. 0., Acta path. microbiol., Scand. Suppl. So, 1, (1949).]Search in Google Scholar
[18. Passey, R. D;, Brit. Emp. Cancer. Campaign. Ann. Rept. 36, 48, (1958).]Search in Google Scholar
[19. Shimkin, M. B., in Adv. Cancer. Res. 3, 223, (1955).10.1016/S0065-230X(08)60921-5]Search in Google Scholar
[20. Stenton, M. F., Blackwell, R., J. Nat. Cancer Inst. 27, 275, (1961).]Search in Google Scholar
[21. Wynder, E. L., Graham, E. A., Croninger, A. B., Cancer Res. 13, 855, (1953).]Search in Google Scholar
[22. Wynder, E. L., New England. J. Med. 264, 1235, (1961).10.1056/NEJM19610615264240513786986]Search in Google Scholar
[23. Zuppinger, A., Schweiz. Med. Wschr. 88, 1171, (1958). ]Search in Google Scholar