TY  - JOUR
AU  - Chajda, Ivan
AU  - Eigenthaler, Günther
TI  - Some modifications of congruence permutability and dually congruence regular varietie
JO  - Discussiones Mathematicae. General Algebra and Applications
PY  - 2001
SP  - 165
EP  - 174
VL  - 21
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DMGAA_2001_21_2_a2/
LA  - en
ID  - DMGAA_2001_21_2_a2
ER  -