%0 Journal Article
%A Arnfried Kemnitz
%A Margit Voigt
%T A note on complex-4-colorability of signed planar graphs
%J The electronic journal of combinatorics
%D 2021
%V 28
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/9844/
%R 10.37236/9844
%F 10_37236_9844