TY  - JOUR
AU  - Chajda, Ivan
TI  - Permutability of congruences in varieties with idempotent operations
JO  - Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
PY  - 1991
SP  - 33
EP  - 37
VL  - 30
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AUPO_1991__30_1_a2/
LA  - en
ID  - AUPO_1991__30_1_a2
ER  -