@article {OA307,
	title = {Which Differintegration?},
	journal = {IEE Proceedings Vision, Image \& Signal Processing},
	volume = {152},
	number = {6},
	year = {2005},
	note = {n/a},
	month = {July},
	pages = {846{\textendash}850},
	publisher = {IET},
	abstract = {n/a},
	url = {http://oa.uninova.pt/307/},
	author = {Manuel Ortigueira and J.A. Tenreiro-Machado and J. S{\'a} da Costa}
}
