Patrick Mullen Yiying Tong Pierre Alliez Mathieu Desbrun Spectral Conformal Parameterization. 1487-1494 2008 27 Comput. Graph. Forum 5 http://dx.doi.org/10.1111/j.1467-8659.2008.01289.x db/journals/cgf/cgf27.html#MullenTAD08