%0 Journal Article
%A Czesław Olech
%T Approximation of set-valued functions by continuous functions
%J Colloquium Mathematicum
%D 1968
%P 285-293
%V 19
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-19-2-285-293/
%R 10.4064/cm-19-2-285-293
%G en
%F 10_4064_cm_19_2_285_293