TY  - JOUR
AU  - P. G. Naumov
TI  - Modal logics that are conservative over intuitionistic predicate calculus
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1991
SP  - 86
EP  - 90
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1991_6_a17/
LA  - ru
ID  - VMUMM_1991_6_a17
ER  -