The multidimensional isotropic generalization of quadrature filters in Geometric Algebra
@InProceedings{felsberg00afpac,
  author = 	 {M. Felsberg and G. Sommer},
  title = 	 {The multidimensional isotropic generalization of quadrature filters in Geometric Algebra},
  booktitle = 	 {2nd International Workshop on Algebraic Frames for the Perception-Action Cycle, AFPAC 2000, Kiel},
  year =	 2000,
  pages =        {175-185},
  publisher =    {Springer-Verlag},
  editor =       {G. Sommer and Y. Zeevi},
  series =       {LNCS},
  volume =       {1888},
  }