TY  - JOUR
AU  - Pondělíček, Bedřich
TI  - A characterization of semilattices of left or right groups
JO  - Czechoslovak Mathematical Journal
PY  - 1972
SP  - 522
EP  - 524
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1972.101123/
DO  - 10.21136/CMJ.1972.101123
LA  - en
ID  - 10_21136_CMJ_1972_101123
ER  -