TY  - JOUR
AU  - Pondělíček, Bedřich
TI  - Commutative semigroups whose lattice of tolerances is Boolean
JO  - Czechoslovak Mathematical Journal
PY  - 1988
SP  - 226
EP  - 230
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102216/
DO  - 10.21136/CMJ.1988.102216
LA  - en
ID  - 10_21136_CMJ_1988_102216
ER  -