@book{hoeppner1999fuzzy,
  author = {Höppner, Frank and Klawonn, Frank and Kruse, Rudolf and Runkler, Thomas},
  bibsource = {DBLP, http://dblp.uni-trier.de},
  interhash = {daa6dcfce2b8fd6153cc8b89b142c263},
  intrahash = {8e77172459a6abf4c50dc14a5e1e0467},
  isbn = {3-540-40317-5},
  publisher = {John Wiley \& Sons, Inc.},
  title = {Fuzzy Cluster Analysis},
  year = 1999
}