1. The metallogeny of Greece;Anastopoulos,1984
2. Annual book of ASTM standards, Part 26. Proximate analysis of coal and coke D3172-73;A.S.T.M. (American Society for Testing and Materials),1978
3. Ultimate analysis of coal and coke D3176-74;A.S.T.M. (American Society for Testing and Materials),1978
4. Boron in illite as paleosalinity indicator of Illinois coal;Bohor;J. Sediment. Petrol.,1973
5. The petrology of Greek brown coals;Cameron;Int. J. Coal Geol.,1984