Stec, Krystyna  (2012) Focal Mechanisms of Mine-Induced Seismic Events an Explanation of Geomechanical Processes in the Area of Longwall 6, Seam 510 In Hard Coal Mine “Bobrek-Centrum”.  Archives of Mining Sciences, 57 (4).  pp. 871-886. DOI: https://doi.org/10.2478/v10267-012-0057-7 <https://doi.org/10.2478/v10267-012-0057-7>