The four-color theorem. History, topological foundations, and idea of proof. Translated from the 1994 German original by Julie Peschke. by Fritsch, Gerda, Fritsch, Rudolf Springer-Verlag, New York (1998) 1-260 05C15 (01A55 01A60 05-03)
Total colourings of graphs. by Yap, H. P. Lecture Notes in Mathematics1623 (1996) 1-131 05C15
Graph coloring problems. by Jensen, Tommy R., Toft, Bjarne Wiley-Interscience Series in Discrete Mathematics and Optimization. A Wiley-Interscience Publication. John Wiley & Sons, Inc., New York (1995) 1-295 05C15
Der Vierfarbensatz. (German) [The four-color theorem] Geschichte, topologische Grundlagen und Beweisidee. [History, topological foundations and idea of proof] With the collaboration of Gerda Fritsch. by Fritsch, Rudolf Bibliographisches Institut, Mannheim (1994) 1-251 05C15 (01A55 01A60 05-01)
Every planar map is four colorable. With the collaboration of J. Koch. by Appel, Kenneth, Haken, Wolfgang Contemporary Mathematics98 (1989) 1-741 05C15
The four-color problem. Assaults and conquest. Second edition. by Kainen, Paul C., Saaty, Thomas L. Dover Publications, Inc., New York (1986) 1-217 05C15 (05-02)
Graphentheorie. (German) [Graph theory] Eine Entwicklung aus dem 4-Farben Problem. [A development from the 4-color problem] by Aigner, Martin Teubner Studienbücher Mathematik. [Teubner Mathematical Textbooks] B. G. Teubner, Stuttgart (1984) 1-269 05C15 (05-01)
Algebraicheskii podkhod k probleme raskraski ploskikh grafov. (Russian) [Algebraic approach to the problem of coloring of planar graphs] by Donets, G. A., Shor, N. Z. ``Naukova Dumka'', Kiev (1982) 1-144 05C15
Edge-colourings of graphs. by Fiorini, S., Wilson, Robin James Research Notes in Mathematics16 (1977) 1-154 05C15
Teorema o raskraske kart. (Russian) [Map color theorem] Translated from the English by V. B. Alekseev. Edited by G. P. Gavrilov. by Ringel, G. "Sovremennaya Matematika". Vvodnye Kursy. ["Modern Mathematics". Introductory Courses] Izdat. ``Mir'', Moscow (1977) 1-256 05C15
Nouvelles réductions dans le problème des quatre couleurs. (French) by Mayer, Jean Cahiers Mathématiques1 (1974) 1-4 05C15
Map color theorem. by Ringel, Gerhard Die Grundlehren der mathematischen Wissenschaften209 (1974) 1-191 05C15 (55A15)
On certain homomorphism-properties of graphs with applications to the conjecture of Hadwiger. by Jakobsen, Ivan Tafteberg Doctoral dissertation, University of London (1971) 1-138 05C15
