TY  - JOUR
AU  - B. M. Vernikov
TI  - Semigroup Varieties on Whose Free Objects Almost All Fully Invariant Congruences are Weakly Permutable
JO  - Algebra i logika
PY  - 2004
SP  - 635
EP  - 649
VL  - 43
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2004_43_6_a0/
LA  - ru
ID  - AL_2004_43_6_a0
ER  -