TY  - JOUR
AU  - M. M. Arslanov
TI  - Completeness in the arithmetical hierarchy, and fixed points
JO  - Algebra i logika
PY  - 1989
SP  - 3
EP  - 17
VL  - 28
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1989_28_1_a0/
LA  - ru
ID  - AL_1989_28_1_a0
ER  -