?url_ver=Z39.88-2004&rft_id=10.1155%2F2014%2F342893&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Atangana%2C+Abdon&rft.aulast=Atangana&rft.aufirst=Abdon&rft.volume=2014&rft.date=5+February+2014&rft.issn=1085-3375&rft.atitle=Stochastic+Risk+and+Uncertainty+Analysis+for+Shale+Gas+Extraction+in+the+Karoo+Basin+of+South+Africa&rft.title=Abstract+and+Applied+Analysis&rft.genre=article