International Journal of Coal Geology
International Journal of Coal Geology > 2016 > 163 > C > 100-111
International Journal of Coal Geology > 2016 > 165 > C > 157-172
International Journal of Coal Geology > 2016 > 167 > C > 31-47
International Journal of Coal Geology > 2016 > 163 > C > 100-111
International Journal of Coal Geology > 2016 > 165 > C > 157-172
International Journal of Coal Geology > 2016 > 167 > C > 31-47