TY  - JOUR
AU  - Nešetřil, Jaroslav
TI  - Every group is a maximal subgroup of the semigroup of relations
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1971
SP  - 19
EP  - 21
VL  - 12
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1971__12_1_a2/
LA  - en
ID  - CMUC_1971__12_1_a2
ER  -