TY  - JOUR
AU  - I. L. Bondi
TI  - Solvability or unsolvability of certain formally-logical calculi
JO  - Doklady Akademii Nauk
PY  - 1967
SP  - 1001
EP  - 1002
VL  - 172
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1967_172_5_a1/
LA  - ru
ID  - DAN_1967_172_5_a1
ER  -