Geometric algebra as a framework for the perception-action cycle
@InProceedings{sommer96dagstuhl,
  author = 	 {G. Sommer and E. Bayro--Corrochano and T. B{"u}low},
  title = 	 {Geometric algebra as a framework for the perception--action cycle},
  booktitle = 	 {Advances in Computer Vision},
  editor  =	 {F. Solina and W.G. Kropatsch and R. Klette and R. Bajcsy},
  year =	 1997,
  publisher =	 {Springer-Verlag, Wien},
  pages =        {251--260},
  }