[1. Keith, C. H.: Paper presented at the joint meeting of Coresta Smoke and Tedtnology Study Groups, held in Munidt,. Germany, in September 1977.]Search in Google Scholar
[2. Reynolds, J. H., and J. P. Wheeler: Tobacco Science XXI (1977) 85.]Search in Google Scholar
[3. Jarman, R. T.: Paper presented at the Fourteenth Tobacco Chemists' Researdt Conference, WinstonSalem, N. C., U.S.A., October 1960.]Search in Google Scholar
[4. Lorenz, H.-W., and F. Seehofer: Beitr. Tabakforsdt. 6 (1971) 1.]Search in Google Scholar
[5. Baker, R. R.: Beitr. Tabakforsdt. 8 (1975) 124.]Search in Google Scholar
[6. Selke, W. A., and J. H. Mathews: Paper presented at Coresta Tedtnology Study Group meeting held in Munidt, Germany, in September 1977; Beitr. Tabakforsdt. 9 (1978) 193.]Search in Google Scholar
[7. Coresta Recommended Method No. 3: Determination of the air permeability of cigarette paper; Coresta ·Information Bulletin 1975-3/4, 38-41.]Search in Google Scholar