%0 Journal Article
%A Daniel W. Cranston
%A Gexin Yu
%T A new lower bound on the density of vertex identifying codes for the infinite hexagonal grid
%J The electronic journal of combinatorics
%D 2009
%V 16
%N 1
%U http://geodesic.mathdoc.fr/articles/10.37236/202/
%R 10.37236/202
%F 10_37236_202