TY  - JOUR
AU  - S. I. Mardaev
TI  - Least fixed points in the G\"odel-L\"ob logic
JO  - Algebra i logika
PY  - 1993
SP  - 683
EP  - 689
VL  - 32
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1993_32_6_a5/
LA  - ru
ID  - AL_1993_32_6_a5
ER  -