%0 Journal Article %A Stanley Burris %T The structure of closure congruences %J Colloquium Mathematicum %D 1971 %P 3-5 %V 24 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-24-1-3-5/ %R 10.4064/cm-24-1-3-5 %G en %F 10_4064_cm_24_1_3_5