@conference {218,
	title = {A technique for verifying the smoothness of subdivision schemes},
	booktitle = {Geometric Modeling and Computing: Seattle 2003},
	year = {2004},
	publisher = {Nashboro Press},
	organization = {Nashboro Press},
	author = {Georg Umlauf},
	editor = {M.L.~Lucian and M.~Neamtu}
}
