?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.ijhydene.2021.09.156&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ismael&rft.au=Ismael%2C+M.A.&rft.aufirst=M.A.&rft.date=2021&rft.title=International+Journal+of+Hydrogen+Energy&rft.atitle=Experimental+study+on+combustion+stability+and+performance+of+hydrogen-enriched+compressed+natural+gas+of+a+free-piston+linear+generator&rft.pages=39536-39547&rft.issue=79&rft.volume=46&rft.issn=03603199&rft.genre=article