Yaron Lipman Olga Sorkine Marc Alexa Daniel Cohen-Or David Levin Christian Rössl Hans-Peter Seidel Laplacian Framework for Interactive Mesh Editing. 43-62 2005 11 International Journal of Shape Modeling 1 http://dx.doi.org/10.1142/S0218654305000724 db/journals/ijsm/ijsm11.html#LipmanSACLRS05