%0 Journal Article
%A Jr., I. Ruzsa
%T On a Problem of P. Erdös
%J Canadian mathematical bulletin
%D 1972
%P 309-310
%V 15
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-058-2/
%R 10.4153/CMB-1972-058-2
%F 10_4153_CMB_1972_058_2