International Journal of Coal Geology
International Journal of Coal Geology > 2017 > 174 > C > 41-54
International Journal of Coal Geology > 2017 > 174 > C > 31-40
International Journal of Coal Geology > 2017 > 174 > C > 1-7
International Journal of Coal Geology > 2017 > 174 > C > 8-22
International Journal of Coal Geology > 2017 > 174 > C > 23-30