Vier-Farben-Satz (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Vier-Farben-Satz" in German language version.

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ams.org

doi.org

  • Kenneth Appel, Wolfgang Haken (with the collaboration of J. Koch): Every Planar Map is Four-Colorable. In: Contemporary Mathematics. Band 98. American Mathematical Society, Providence, RI 1989, ISBN 0-8218-5103-9, doi:10.1090/conm/098.
  • Neil Robertson, Daniel P. Sanders, Paul Seymour, Robin Thomas: Efficiently four-coloring planar graphs. In: STOC’96: Proceedings of the twenty-eighth annual ACM symposium on Theory of computing. ACM Press, 1996, S. 571–575, doi:10.1145/237814.238005 (englisch).

redirecter.toolforge.org

  • Four Color Theorem. Archiviert vom Original (nicht mehr online verfügbar) am 12. Februar 2015; abgerufen am 12. Juni 2022.

web.archive.org

  • Four Color Theorem. Archiviert vom Original (nicht mehr online verfügbar) am 12. Februar 2015; abgerufen am 12. Juni 2022.

wolfram.com

mathworld.wolfram.com