@conference {224,
	title = {Triangular G^2 splines},
	booktitle = {Curve and Surface Design},
	year = {1999},
	publisher = {Vanderbilt University Press},
	organization = {Vanderbilt University Press},
	author = {Hartmut Prautzsch and Georg Umlauf},
	editor = {P.-L.~Laurent and P.~Sablonniere and L.L.~Schumaker}
}
