TY  - JOUR
AU  - A. V. Karpenko
TI  - Weak interpolation in extensions of the logics $S4$ and~$K4$
JO  - Algebra i logika
PY  - 2008
SP  - 705
EP  - 722
VL  - 47
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2008_47_6_a2/
LA  - ru
ID  - AL_2008_47_6_a2
ER  -