%0 Journal Article %A Marcel Erné %A Ralph Kopperman %T Natural continuity space structures on dual Heyting algebras %J Fundamenta Mathematicae %D 1990 %P 157-177 %V 136 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-136-3-157-177/ %R 10.4064/fm-136-3-157-177 %G en %F 10_4064_fm_136_3_157_177