?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Bala%2C+Maria&rft.aulast=Bala&rft.aufirst=Maria&rft.issue=4%2F1&rft.volume=33&rft.date=2007&rft.issn=0138-0974&rft.atitle=Velocity+model+of+P-waves+and+S-waves+and+bulk+density+for+selected+wells+from+the+Western+Carpathians&rft.title=Geologia&rft.pages=59-80&rft.genre=article