%0 Journal Article %A Reza Naserasr %A Zhouningxin Wang %A Xuding Zhu %T Circular chromatic number of signed graphs %J The electronic journal of combinatorics %D 2021 %V 28 %N 2 %U http://geodesic.mathdoc.fr/articles/10.37236/9938/ %R 10.37236/9938 %F 10_37236_9938