@inproceedings{BiedermannWille96,
  address = {Heidelberg},
  author = {Biedermann, Klaus and Wille, Rudolf},
  booktitle = {From data to knowledge},
  editor = {Gaul, W. and Pfeiffer, D.},
  interhash = {240cd62a73343c8257ab2a4d3d9d6052},
  intrahash = {671bac5e68875a410e5b157315a9986f},
  pages = {141-150},
  publisher = {Springer--Verlag},
  title = {Valuations and hierarchizations},
  year = 1996
}