%0 Journal Article
%A Chvalina, Jan
%T Isomorphic algebraic pre-closures and equivalent set-systems
%J Archivum mathematicum
%D 1977
%P 141-147
%V 13
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ARM_1977__13_3_a2/
%G en
%F ARM_1977__13_3_a2