Using genetic algorithms to create multicriteria class intervals for choropleth maps. Armstrong, M. P., Xiao, N. C., & Bennett, D. A. Annals of the Association of American Geographers, 93(3):595--623, September, 2003.
bibtex   
@ARTICLE{Armstrong03,
  author = {M. P. Armstrong and N. C.  Xiao and D. A. Bennett},
  title = {{Using genetic algorithms to create multicriteria class intervals for choropleth maps}},
  journal = {Annals of the Association of American Geographers},
  volume = {93},
  number = {3},
  pages = {595--623},
  month = {September},
  year = {2003}
}

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