Alvaro Cuno Claudio Esperança Antonio A. F. Oliveira Paulo Roma Cavalcanti Fast Polygonization of Variational Implicit Surfaces. 258-265 2004 conf/sibgrapi/2004 SIBGRAPI http://csdl.computer.org/comp/proceedings/sibgrapi/2004/2227/00/22270258abs.htm db/conf/sibgrapi/sibgrapi2004.html#CunoEOC04