TY  - JOUR
AU  - B.M. Schein
TI  - Minimal group congruences need not be smallest.
JO  - Semigroup forum
PY  - 1972
SP  - 273
EP  - 276
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1972__5_133946/
ID  - SF_1972__5_133946
ER  -