@article {216,
	title = {Local energy-optimizing subdivision algorithms},
	journal = {Computer Aided Geometric Design},
	volume = {25},
	year = {2008},
	pages = {137-147},
	author = {Ingo Ginkel and Georg Umlauf}
}
@article {222,
	title = {Symmetry of shape charts},
	journal = {Computer Aided Geometric Design},
	volume = {25},
	year = {2008},
	pages = {131-136},
	author = {Ingo Ginkel and Georg Umlauf}
}
@article {196,
	title = {Analyzing a generalized Loop subdivision scheme},
	journal = {Computing},
	volume = {79},
	year = {2007},
	pages = {353-363},
	author = {Ingo Ginkel and Georg Umlauf}
}
@article {191,
	title = {Normals of subdivision surfaces and their control polyhedra},
	journal = {Computer Aided Geometric Design},
	volume = {24},
	year = {2007},
	pages = {112-116},
	author = {Ingo Ginkel and J{\"o}rg Peters and Georg Umlauf}
}
@conference {206,
	title = {Tuning subdivision algorithms using constrained energy minimization},
	booktitle = {Mathematics of Surfaces XII},
	year = {2007},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	author = {Ingo Ginkel and Georg Umlauf},
	editor = {R.~Martin and M.~Sabin and J.~Winkler}
}
@conference {184,
	title = {Controlling a subdivision tuning method},
	booktitle = {Curve and Surface Fitting},
	year = {2006},
	author = {Ingo Ginkel and Georg Umlauf},
	editor = {A.~Cohen and J.-L.~Merrien and L.L.~Schumaker}
}
@conference {219,
	title = {Loop subdivision with curvature control},
	booktitle = {Eurographics Symposium on Geometry Processing},
	year = {2006},
	publisher = {Eurographics},
	organization = {Eurographics},
	author = {Ingo Ginkel and Georg Umlauf},
	editor = {K.~Polthier and A.~Sheffer}
}
@conference {215,
	title = {On normals and control nets},
	booktitle = {Mathematics of Surfaces XI},
	year = {2005},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	author = {Ingo Ginkel and J{\"o}rg Peters and Georg Umlauf},
	editor = {R.~Martin and H.~Bez and M.~Sabin pages = 233-239}
}
