%0 Journal Article
%A Cousot, Patrick
%A Cousot, Radhia
%T A constructive characterization of the lattices of all retractions, preclosure, quasi-closure and closure operators on a complete lattice
%J Portugaliae mathematica
%D 1979
%P 185-198
%V 38
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1979__38_1-2_115380/
%G en
%F PORMA_1979__38_1-2_115380