%0 Journal Article
%A Bukovský, Lev
%T $\nabla$-model and distributivity in Boolean algebras
%J Commentationes Mathematicae Universitatis Carolinae
%D 1968
%P 595-612
%V 09
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMUC_1968__9_4_a9/
%G en
%F CMUC_1968__9_4_a9