TY  - JOUR
AU  - Yu. L. Ershov
TI  - Elementary theories of Post varieties
JO  - Algebra i logika
PY  - 1967
SP  - 7
EP  - 15
VL  - 6
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1967_6_5_a0/
LA  - ru
ID  - AL_1967_6_5_a0
ER  -