TY  - JOUR
AU  - Yu. L. Ershov
TI  - Axiomatizable classes of models with infinite signature
JO  - Algebra i logika
PY  - 1962
SP  - 32
EP  - 44
VL  - 1
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1962_1_4_a1/
LA  - ru
ID  - AL_1962_1_4_a1
ER  -