?url_ver=Z39.88-2004&rft_id=10.4028%2Fwww.scientific.net%2FJERA.1.11&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M.T.&rft.aulast=Fathaddin&rft.au=Fathaddin%2C+M.T.&rft.date=2010&rft.title=International+Journal+of+Engineering+Research+in+Africa&rft.pages=11-16&rft.atitle=Performance+of+surfactant+flooding+in+heterogeneous+two-layered+porous+media&rft.volume=1&rft.issn=16633571&rft.genre=article