1. Van Krevelen, D.V., Coal: Typology–Chemistry–Physics–Constitution, Amsterdam: Elsevier, 1981.
2. Veselovskii, V.S., Khimicheskaya priroda goryuchikh iskopaemykh (Chemical Nature of Fossil Fuels), Moscow: Izd. Akad. Nauk SSSR, 1955.
3. Kukharenko, T.A., Khimiya i genezic iskopaemykh uglei (Chemistry and Genesis of Fossil Coals), Moscow: Gosgortekhizdat, 1960.
4. Rus’yanova, N.D., Uglekhimiya (Coal Chemistry), Moscow: Nauka, 2003.
5. Gyul’maliev, A.M., Golovin, G.S., and Gagarin, S.G., Klassifikatsiya goryuchikh iskopaemykh po strukturnokhimicheskim pokazatelyam i osnovnye puti ispol’zovaniya iskopaemykh uglei (Fossil Fuel Classification Based on Structural and Chemical Characteristics and the Main Applications of Fossil Coals), Moscow: NTK Trek, 2007.