?url_ver=Z39.88-2004&rft_id=doi%3A10.1016%2Fj.coal.2014.01.004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Soeder%2C+Daniel+J.&rft.aulast=Soeder&rft.aufirst=Daniel+J.&rft.volume=126&rft.date=June+2014&rft.issn=0166-5162&rft.atitle=An+approach+for+assessing+engineering+risk+from+shale+gas+wells+in+the+United+States&rft.title=International+Journal+of+Coal+Geology&rft.pages=4-19&rft.genre=article