International Journal of Coal Geology
International Journal of Coal Geology > 2007 > 71 > 4 > 471-487
International Journal of Coal Geology > 2010 > 83 > 4 > 346-365
International Journal of Coal Geology > 2007 > 71 > 4 > 471-487
International Journal of Coal Geology > 2010 > 83 > 4 > 346-365