1. Rakovskii, V.E. and Pigulevskaya, L.V., Khimiya i genezis torfa (Peat Chemistry and Genesis), Moscow: Nedra, 1978.
2. Bambalov, N.N., Doctoral (Agric.) Dissertation, Minsk: Peat Inst., 1983.
3. Zaccone, C., Sanei, H., Outridg, P.M., and Miano, T.M., Org. Geochem., 2011, vol. 42, p. 399.
4. Lebedev, K.K., in Genezis tverdykh goryuchikh iskopaemykh (Genesis of Fossil Solid Fuels), Moscow: Izd. Akad. Nauk SSSR, 1959, p. 31.
5. Pigulevskaya, L.V. and Rakovskii, V.E., in Tr. Inst. Torfa (Proc. Peat Inst.), Minsk: Izd. Akad. Nauk BSSR, 1957, vol. 6, p. 123.