TY  - JOUR
AU  - L. L. Maksimova
TI  - Pretabular extensions of Lewis's logic $S4$
JO  - Algebra i logika
PY  - 1975
SP  - 28
EP  - 55
VL  - 14
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1975_14_1_a2/
LA  - ru
ID  - AL_1975_14_1_a2
ER  -