M. Maral, F. Suner, D. Maral, . A. Kepekli. "SOME COAL RELATED CLAY OCCURRENCES: GEOCHEMICAL, MINERALOGICAL PROPERTIES AND USAGE OF CLAY POTENTIALS IN BIGA PENINSULA, TURKEY." 9th International Multidisciplinary Scientific GeoConference SGEM2009, 2009, pp. 113-120.