%0 Journal Article
%A Chvalina, Jan
%T Concerning a non-realizability of connected compact semi-separated closure operations by set-systems
%J Archivum mathematicum
%D 1976
%P 45-51
%V 12
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1976__12_1_a6/
%G en
%F ARM_1976__12_1_a6