1. Maloletnev, A.S. and Shpirt, M.Ya., Ros. Khim. Zh. (Zh. Ros. Khim. O-va Im. D.I. Mendeleeva), 2008, vol. 52, no. 6, p. 29.
2. Prospects for Coal Science: Proc. 12th Int. Conf. on Coal Science (ICCS’03), Cairus, 2003, vol. 1.
3. Ipat’ev, V.N., Kataliticheskie reaktsii pri vysokikh temperaturakh i davleniyakh (Catalytic Reactions at High Temperatures and Pressures), Moscow: Akad. Nauk SSSR, 1936.
4. Bergius, Fr., Deutscher Ingenieur, 1923, vol. 69, p. 1313.
5. Rapoport, I.B., Iskusstvennoe zhidkoe toplivo (Synthetic Liquid Fuel), Moscow: Gostoptekhizdat, 1955.