TY  - JOUR
AU  - A. A. Tverskoi
TI  - Constructivizable and non-constructivizable formal arithmetic structures
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1985
SP  - 145
EP  - 146
VL  - 40
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1985_40_6_a19/
LA  - en
ID  - RM_1985_40_6_a19
ER  -