TY - JOUR L1 - http://journals.pan.pl/Content/93679/PDF/10267-Volume59_Issue4-01_paper.pdf L2 - http://journals.pan.pl/Content/93679 PY - 2014 IS - No 4 DO - 10.2478/amsc-2014-0059 A1 - Krawczyk, Jerzy A1 - Janus, Jakub PB - Committee of Mining PAS DA - 2014 T1 - Modeling of the Propagation of Methane from the Longwall Goaf, Performed by Means of a Two-Dimensional Description UR - http://journals.pan.pl/dlibra/publication/edition/93679 T2 - Archives of Mining Sciences ER -