%0 Journal Article
%A Erdös, P.
%A Rényi, A.
%T Remarks on a Problem of Obreanu
%J Canadian mathematical bulletin
%D 1963
%P 267-273
%V 6
%N 2
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1963-024-5/
%R 10.4153/CMB-1963-024-5
%F 10_4153_CMB_1963_024_5