@conference {29049,
	title = {Examples on an Algorithm for Least Squares Data Fitting By Nonnegative Differences},
	booktitle = {Proceedings of the 7th Hellenic - European Conference on Computer Mathematics and its Applications HERCMA 2005},
	year = {2005},
	pages = {13},
	author = {I. C. Demetriou and EA Lipitakis and E.E. Vassiliou}
}
