%0 Journal Article %1 AppelHakenKock %A Appel, K.and W. Haken %A Koch, J. %D 1977 %J Illinois Journal of Mathematics %K imported %P 429-567 %T Every Planar Map is Four-Colorable %V 21

@article{AppelHakenKock, added-at = {2008-03-02T02:12:02.000+0100}, author = {Appel, K.and W. Haken and Koch, J.}, biburl = {https://www.bibsonomy.org/bibtex/29e26c01a320d0617160f9206789b56c1/dmartins}, description = {robotica-bib}, interhash = {264302e369afcd522e3ec53da59b589b}, intrahash = {9e26c01a320d0617160f9206789b56c1}, journal = {Illinois Journal of Mathematics}, keywords = {imported}, pages = {429-567}, timestamp = {2008-03-02T02:12:10.000+0100}, title = {Every Planar Map is Four-Colorable}, volume = 21, year = 1977 }