?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.energy.2013.09.039&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.M.&rft.aulast=Atnaw&rft.au=Atnaw%2C+S.M.&rft.pages=491-501&rft.atitle=Syngas+production+from+downdraft+gasification+of+oil+palm+fronds&rft.volume=61&rft.issn=03605442&rft.date=2013&rft.title=Energy&rft.genre=article