?url_ver=Z39.88-2004&rft_id=10.1002%2Fldr.3400040417&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Rautengarten%2C+A.&rft.aulast=Rautengarten&rft.aufirst=A.&rft.issue=4&rft.volume=4&rft.date=1993&rft.issn=1085-3278&rft.atitle=Sources+of+heavy+metal+pollution+in+the+Rhine+Basin&rft.title=Land+Degradation+and+Development&rft.pages=339-349&rft.genre=article