TY  - JOUR
AU  - Chajda, Ivan
TI  - On the existence of non-trivial tolerances in permutable algebras
JO  - Czechoslovak Mathematical Journal
PY  - 1990
SP  - 598
EP  - 600
VL  - 40
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1990.102413/
DO  - 10.21136/CMJ.1990.102413
LA  - en
ID  - 10_21136_CMJ_1990_102413
ER  -