Paolo Cignoni Claudio Montani Claudio Rocchini Roberto Scopigno External Memory Management and Simplification of Huge Meshes. 525-537 2003 9 IEEE Trans. Vis. Comput. Graph. 4 http://csdl.computer.org/comp/trans/tg/2003/04/v0525abs.htm db/journals/tvcg/tvcg9.html#CignoniMRS03