por Baraff, David [autor] | Witkin, Andrew [editor] | Kass, Michael [editor] | Barr, Alan [autor] | Siggraph International Conference On Computer Graphics And Interactive Techniques (18 : 1991 : Las Vegas Convention Center).
por Peuch, Claude [editor] | Baraff, David [autor] | Siggraph International Conference On Computer Graphics And International Techniques # (18 : 1991 : Las Vegas Convention Center).