TY  - JOUR
AU  - Takano, Mitio
TI  - New Modification of the Subformula Property for a Modal Logic
JO  - Bulletin of the Section of Logic
PY  - 2020
SP  - 255
EP  - 268
VL  - 49
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/BSL_2020_49_3_a2/
LA  - en
ID  - BSL_2020_49_3_a2
ER  -