?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.enconman.2013.04.004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Helwani&rft.au=Helwani%2C+Z.&rft.aufirst=Z.&rft.issn=01968904&rft.date=2013&rft.atitle=Conversion+of+Jatropha+curcas+oil+into+biodiesel+using+re-crystallized+hydrotalcite&rft.pages=128-134&rft.volume=73&rft.title=Energy+Conversion+and+Management&rft.genre=article