TY  - JOUR
AU  - I. P. Bestsennyi
TI  - Quasi-identities of finite unary algebras
JO  - Algebra i logika
PY  - 1989
SP  - 493
EP  - 512
VL  - 28
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1989_28_5_a1/
LA  - ru
ID  - AL_1989_28_5_a1
ER  -