1. J.V. Kierulff, O.B. Jorgenson, T.T. Hansen, A.J. Knox, Y. De Grandpré, Use of a phenol oxidizing enzyme in the treatment of tobacco, US Patent 6,298,859.
2. Recent advances in studies on pyrosynthesis of cigarette smoke constituents;Schlotzhauer;J. Anal. Appl. Pyrol.,1987
3. Incomplete carcinogens in cigarette smoke condensate: tumour-promotion by a phenolic fraction;Roe;Br. J. Cancer,1959
4. Y. De Grandpré, M.H. Bilimoria, A.R. Porter, Tobacco treatment, US Patent 5,601,097.
5. Le Lactose, extraction et hydrolyse et déminéralisation du lactosérum;Chaput;Rev. Lait. Française,1979