@article{10_37236_9938,
     author = {Reza Naserasr and Zhouningxin Wang and Xuding Zhu},
     title = {Circular chromatic number of signed graphs},
     journal = {The electronic journal of combinatorics},
     year = {2021},
     volume = {28},
     number = {2},
     doi = {10.37236/9938},
     zbl = {1466.05090},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/9938/}
}