%0 Journal Article
%A Jiaao Li
%A Xueliang Li
%A Zhiqian Wang
%T Every signed planar graph of girth 5 has circular chromatic number strictly less than 4
%J The electronic journal of combinatorics
%D 2025
%V 32
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/12168/
%R 10.37236/12168
%F 10_37236_12168