%0 Journal Article
%A J. Płonka
%T On discrete subspaces of a Hilbert space
%J Colloquium Mathematicum
%D 1977
%P 53-54
%V 38
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-38-1-53-64/
%R 10.4064/cm-38-1-53-64
%G en
%F 10_4064_cm_38_1_53_64