Some topological approaches to the four color problem
Fisk, Steve
Bull. Amer. Math. Soc., Tome 79 (1973) no. 5, p. 1051-1055 / Harvested from Project Euclid
Text on Project Euclid
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Publié le : 1973-09-14
Classification:  55A15,  05C15,  05C10 
@article{1183535002,
     author = {Fisk, Steve},
     title = {Some topological approaches to the four color problem},
     journal = {Bull. Amer. Math. Soc.},
     volume = {79},
     number = {5},
     year = {1973},
     pages = { 1051-1055},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1183535002}
}

Fisk, Steve. Some topological approaches to the four color problem. Bull. Amer. Math. Soc., Tome 79 (1973) no. 5, pp.  1051-1055. http://gdmltest.u-ga.fr/item/1183535002/