TY  - JOUR
AU  - R. È. Yavorskii
TI  - Axiom systems and models for first-order theories with a provability operator
JO  - Vestnik Moskovskogo universiteta. Matematika, mehanika
PY  - 1996
SP  - 12
EP  - 16
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/VMUMM_1996_1_a1/
LA  - ru
ID  - VMUMM_1996_1_a1
ER  -