?url_ver=Z39.88-2004&rft_id=doi%3A10.2478%2Fv10267-012-0057-7&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Stec%2C+Krystyna&rft.aulast=Stec&rft.aufirst=Krystyna&rft.issue=4&rft.volume=57&rft.date=31+December+2012&rft.issn=0860-7001&rft.atitle=Focal+Mechanisms+of+Mine-Induced+Seismic+Events+an+Explanation+of+Geomechanical+Processes+in+the+Area+of+Longwall+6%2C+Seam+510+In+Hard+Coal+Mine+%E2%80%9CBobrek-Centrum%E2%80%9D&rft.title=Archives+of+Mining+Sciences&rft.pages=871-886&rft.genre=article