%0 Journal Article
%A Edelstein, M.
%T On a Problem by R.A. Hirschfeld: Counterexample
%J Canadian mathematical bulletin
%D 1965
%P 835-835
%V 8
%N 6
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1965-066-6/
%R 10.4153/CMB-1965-066-6
%F 10_4153_CMB_1965_066_6