@Article{DIT_02neucomp,
  author = 	 {Michael Dittenbach, Andreas Rauber, Dieter Merkl},
  title = 	 {Uncovering Hierarchical Structure in Data Using the 
Growing Hierarchical Self-Organizing Map},
  journal = 	 {Neurocomputing},
  issn =         {0925-2312},
  volume =       48,
  number =       {1-4},
  pages =        {199-216},
  year = 	 2002,
  month =        {October},
  publisher =    {Elsevier},
}