%0 Journal Article
%A Denis  Krotov
%T Perfect colorings of the infinite square grid: coverings and twin colors
%J The electronic journal of combinatorics
%D 2023
%V 30
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/10005/
%R 10.37236/10005
%F 10_37236_10005