%0 Journal Article
%A Hofmann, K. H.
%A Jr, K. D. Magill
%T The smallest proper congruence on S(X)
%J Glasgow mathematical journal
%D 1988
%P 301-313
%V 30
%N 3
%U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007394/
%R 10.1017/S0017089500007394
%F 10_1017_S0017089500007394