%0 Journal Article
%A H. Maehara
%T Note on Induced Subgraphs of the Unit Distance  Graph En.
%J Discrete & computational geometry
%D 1989
%P 15-18
%V 4
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DCG_1989__4_6_131061/
%F DCG_1989__4_6_131061