四色定理 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "四色定理" in Chinese language version.

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ams.org

archive.org

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gatech.edu

people.math.gatech.edu

illinois.edu

math.illinois.edu

jstor.org

msra.cn

libra.msra.cn

nasonline.org

nih.gov

ncbi.nlm.nih.gov

projecteuclid.org

ruc.dk

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st-and.ac.uk

www-groups.dcs.st-and.ac.uk

  • J. J. O'Connor, E. F. Robertson. The four colour theorem. 犹他州大学. 1996年9月 [2013-03-03]. (原始内容存档于2013-01-16) (英语). 

stonehill.edu

web.stonehill.edu

  • Professors Ralph Bravaco and Shai Simonson. The Four-Color Theorem. Stonehill College. [2013-03-02]. (原始内容存档于2013-05-01) (英语). 

thatmarcusfamily.org

ucalgary.ca

web.archive.org