TY  - JOUR
AU  - Pondělíček, Bedřich
TI  - Modularity and distributivity of tolerance lattices of commutative separative semigroups
JO  - Czechoslovak Mathematical Journal
PY  - 1985
SP  - 333
EP  - 337
VL  - 35
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1985.102021/
DO  - 10.21136/CMJ.1985.102021
LA  - en
ID  - 10_21136_CMJ_1985_102021
ER  -