Tobacco Flavoring for Smoking Products, Leffingwell et al., pp. 11-15 (1972). |
Levulinic Acid as a Basic Chemical Raw Material, Leonard, Industrial and Engineering Chemistry; vol. 48, pp. 1331-1341 (1956). |
Tobacco and Tobacco Smoke, Wynder et al., p. 428 (1962). |
Determination of Nonvolatile Organic and Fatty Acids in Flue-Cured Tobacco by Gas-Liquid Chromatography, Court et al., Journal of Chromatographic Science; vol. 16, pp. 314-316 (1978). |
The Distribution of Cigarette Smoke Components between Mainstream and Sidestream Smoke, Sakuma et al., Beitr. Tabak., vol. 12, pp. 63-71 (1983). |