TY  - JOUR
AU  - I. A. Gorbunov
TI  - Theories of the Classical Propositional Logic and Substitutions
JO  - Matematičeskie zametki
PY  - 2021
SP  - 856
EP  - 864
VL  - 110
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2021_110_6_a3/
LA  - ru
ID  - MZM_2021_110_6_a3
ER  -