GIAE 2004.Computer algebra and geometric algebra with applications : 6th international workshop, IWMM 2004, Shanghai, China, May 19-21, 2004 and international workshop, GIAE 2004, Xian, China, May 24-28, 2004 : revised selected papers /.,.
Computer algebra and geometric algebra with applications : 6th international workshop, IWMM 2004, Shanghai, China, May 19-21, 2004 and international workshop, GIAE 2004, Xian, China, May 24-28, 2004 : revised selected papers /