1. On the petrology of banded bituminous coal;Stopes;Fuel,1935
2. Reactions of oxygen containing structures in coal pyrolysis;Hodek;Fuel,1991
3. Coal plasticity mechanism: inferences from liquefaction studies;Neavel,1982
4. Coal—Typology, Physics, Chemistry, Constitution;Van Krevelen,1993
5. The nature of coal material;Crelling,1989