?url_ver=Z39.88-2004&rft_id=10.1038%2Fngeo2943&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Jasechko%2C+S.&rft.aulast=Jasechko&rft.aufirst=S.&rft.issue=6&rft.volume=10&rft.date=27+April+2017&rft.issn=1752-0894&rft.atitle=Global+aquifers+dominated+by+fossil+groundwaters+but+wells+vulnerable+to+modern+contamination&rft.title=Nature+Geoscience&rft.pages=425-429&rft.genre=article