LiGZ93'

@article{DBLP:journals/bc/LiGZ93,
  author    = {X. Li and
               J. Gasteiger and
               J. Zupan},
  title     = {On the topology distortion in self-organizing feature maps},
  journal   = {Biological Cybernetics},
  volume    = {70},
  number    = {2},
  year      = {1993},
  pages     = {189-198},
  ee        = {http://dx.doi.org/10.1007/BF00200832},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}