TY  - JOUR
AU  - Yu. Sh. Gurevich
TI  - The problem of reduction for the logic of predicates and
JO  - Algebra i logika
PY  - 1969
SP  - 284
EP  - 308
VL  - 8
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1969_8_3_a1/
LA  - ru
ID  - AL_1969_8_3_a1
ER  -