Marc Alexa Johannes Behr Daniel Cohen-Or Shachar Fleishman David Levin Cláudio T. Silva Computing and Rendering Point Set Surfaces. 3-15 2003 9 IEEE Trans. Vis. Comput. Graph. 1 http://computer.org/tvcg/tg2003/v0003abs.htm db/journals/tvcg/tvcg9.html#AlexaBCFLS03