2Anderson K B, Iohns R B. Oxidation studies of Australian coall. Aliphatic and aromatic hydrocarbon centres of oxidative attack[J].Org.Geochem., 1986 (5).
3Swann P D, Evans D G. Low-temperature oxidation of brown coal.3. Reaction with molecular oxygen at temperatures close to ambient [J]. Fuel, 1979(4).
4Tooke P B, Grint A. Fourier transform infra-red studies of coal[J]. Fuel, 1983(9).
5Painter P C, Snyder R W, Pearson D E, et al. Fourier transform infrared study of the variation in the oxidation of a coking coal[J]. Fuel, 1980 (5).
6Fredericks P M, Warbrooke P, Wilson M A. Chemical changes during natural oxdation of a high volatile bituminous coal [J].Org. Geochem. ,1983(3).