TY  - JOUR
AU  - Trnková, Věra
TI  - Strong embedding of category of all groupoids into category of semigroups
JO  - Commentationes Mathematicae Universitatis Carolinae
PY  - 1968
SP  - 251
EP  - 256
VL  - 09
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMUC_1968__9_2_a5/
LA  - en
ID  - CMUC_1968__9_2_a5
ER  -