International Journal of Coal Geology
International Journal of Coal Geology > 2004 > 57 > 2 > 127-141
International Journal of Coal Geology > 2004 > 57 > 2 > 117-126
International Journal of Coal Geology > 2004 > 57 > 2 > 77-97
International Journal of Coal Geology > 2004 > 57 > 2 > 99-116
International Journal of Coal Geology > 2004 > 57 > 2 > 143-149