%0 Journal Article
%A W. Waliszewski
%T On the tagency of sets in a metric space
%J Colloquium Mathematicum
%D 1966
%P 129-133
%V 15
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/cm-15-1-129-133/
%R 10.4064/cm-15-1-129-133
%G en
%F 10_4064_cm_15_1_129_133