TY  - JOUR
AU  - V. P. Dobritsa
TI  - Complexity of the index set of a constructive model
JO  - Algebra i logika
PY  - 1983
SP  - 372
EP  - 381
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1983_22_4_a1/
LA  - ru
ID  - AL_1983_22_4_a1
ER  -