TY  - JOUR
AU  - L. D. Beklemishev
TI  - Provability logic without Craig's interpolation property
JO  - Matematičeskie zametki
PY  - 1989
SP  - 12
EP  - 22
VL  - 45
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1989_45_6_a1/
LA  - ru
ID  - MZM_1989_45_6_a1
ER  -