TY  - JOUR
AU  - A. G. Pinus
TI  - Coverings in epimorphism skeletons of varieties of algebras
JO  - Algebra i logika
PY  - 1988
SP  - 316
EP  - 326
VL  - 27
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1988_27_3_a4/
LA  - ru
ID  - AL_1988_27_3_a4
ER  -