International Journal of Coal Geology
International Journal of Coal Geology > 2007 > 70 > 1-3 > 193-208
International Journal of Coal Geology > 2007 > 70 > 1-3 > 209-222
International Journal of Coal Geology > 2007 > 70 > 1-3 > 193-208
International Journal of Coal Geology > 2007 > 70 > 1-3 > 209-222