?url_ver=Z39.88-2004&rft_id=doi%3A10.1016%2Fj.jsm.2019.07.005&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Mutke%2C+Grzegorz&rft.aulast=Mutke&rft.aufirst=Grzegorz&rft.issue=4&rft.volume=18&rft.date=2019&rft.issn=23003960&rft.atitle=Upper+Silesian+Geophysical+Observation+System+A+unit+of+the+EPOS+project&rft.title=Journal+of+Sustainable+Mining&rft.pages=198-207&rft.genre=article