?url_ver=Z39.88-2004&rft_id=10.4271%2F2014-01-1336&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Hagos&rft.au=Hagos%2C+F.Y.&rft.aufirst=F.Y.&rft.issn=01487191&rft.atitle=Mass+fraction+burn+investigation+of+lean+burn+low+BTU+gasification+gas+in+direct-injection+spark-ignition+engine&rft.title=SAE+Technical+Papers&rft.date=2014&rft.volume=1&rft.genre=article