International Journal of Coal Geology
International Journal of Coal Geology > 1998 > 37 > 1-2 > 73-111
International Journal of Coal Geology > 2002 > 51 > 3 > 145-167
International Journal of Coal Geology > 2007 > 69 > 3 > 205-219
International Journal of Coal Geology > 2015 > 152 > Part A > 68-77