Computer Algebra and Geometric Algebra with Applications
 @Book{sommer05,
  editor =	 {H. Li and P. Olver and G. Sommer,},
  title = 	 {Computer Algebra and Geometric Algebra with Applications},
organization = 	 {6th International Workshop IWMM 2004, Shanghai, China and International Workshop GIAE 2004, Xian, China},
  publisher = 	 {Springer-Verlag, Berlin Heidelberg},
  year = 	 2005,
  series =	 {LNCS},
  volume =       {3519},
}