%0 Journal Article %A Konstanty Junosza-Szaniawski %T Upper bound on the circular chromatic number of the plane %J The electronic journal of combinatorics %D 2018 %V 25 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/5418/ %R 10.37236/5418 %F 10_37236_5418