TY  - JOUR
AU  - Hofmann, K. H.
AU  - Jr, K. D. Magill
TI  - The smallest proper congruence on S(X)
JO  - Glasgow mathematical journal
PY  - 1988
SP  - 301
EP  - 313
VL  - 30
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007394/
DO  - 10.1017/S0017089500007394
ID  - 10_1017_S0017089500007394
ER  -