Color-orientation indexing
@InProceedings{mahlmeister96dagm,
  author = 	 {U. Mahlmeister and H. Pahl and G. Sommer},
  title = 	 {Color-orientation indexing},
  booktitle = 	 {Mustererkennung 1996, Tagungsband 18. DAGM--Symposium},
  editor = 	 {B. J{"a}hne and P. Geissler and H. Haussecker and F. Hering},
  publisher =    {Heidelberg, Springer--Verlag},
  year = 	 1996,
  pages =        {3--10},
  }