TY  - JOUR
AU  - V. V. Rybakov
TI  - Hereditarily finitely axiomatizable extensions of the logic S4
JO  - Algebra i logika
PY  - 1976
SP  - 185
EP  - 204
VL  - 15
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1976_15_2_a3/
LA  - ru
ID  - AL_1976_15_2_a3
ER  -