@conference {OA1769,
	title = {Fuel Cells as Clean Electrical Energy Sources},
	booktitle = {XCLEEE - X Portuguese-Spanish Conference in Electrical Engineering},
	year = {2007},
	note = {n/a},
	abstract = {n/a},
	url = {http://oa.uninova.pt/1769/},
	author = {A. Rodrigues and M{\'a}rio Neves and Jo{\~a}o Pina}
}
