Xiaotian Yin Miao Jin Feng Luo 0002 Xianfeng David Gu Discrete Curvature Flows for Surfaces and 3-Manifolds. 38-74 2008 ETVC http://dx.doi.org/10.1007/978-3-642-00826-9_3 conf/etvc/2008 db/conf/etvc/etvc2008.html#YinJLG08