Spherical decision surfaces using conformal modelling
 @InProceedings{perwass03dagm,
  author = 	 {C. Perwass and V. Banarer and G. Sommer},
  title = 	 {Spherical decision surfaces using conformal modelling},
  booktitle =	 {25. Symposium f\"ur Mustererkennung, DAGM 2003, Magdeburg},
  pages =	 {9-16},
  year =	 2003,
  editor =	 {B. Michaelis and G. Krell},
  volume =	 2781,
  series =	 {LNCS},
  publisher =	 {Springer-Verlag, Berlin}
}