TY  - JOUR
AU  - V. V. Rybakov
TI  - Admissible rules for pretabular modal logics
JO  - Algebra i logika
PY  - 1981
SP  - 440
EP  - 464
VL  - 20
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1981_20_4_a5/
LA  - ru
ID  - AL_1981_20_4_a5
ER  -