%0 Journal Article
%A Song, Lili
%A Sun, Lei
%T 1-planar graphs with girth at least 6 are (1,1,1,1)-colorable
%J Czechoslovak Mathematical Journal
%D 2023
%P 993-1006
%V 73
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2023.0418-21/
%R 10.21136/CMJ.2023.0418-21
%G en
%F 10_21136_CMJ_2023_0418_21