%0 Journal Article
%A Morgado, José
%T Note on the system of closure operators of the ordinal product of partially ordered sets
%J Portugaliae mathematica
%D 1965
%P 189-195
%V 24
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1965__24_4_114966/
%G en
%F PORMA_1965__24_4_114966