TY  - JOUR
AU  - V. L. Selivanov
AU  - M. M. Yamaleev
TI  - Turing degrees in refinements of the arithmetical hierarchy
JO  - Algebra i logika
PY  - 2018
SP  - 338
EP  - 361
VL  - 57
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2018_57_3_a5/
LA  - ru
ID  - AL_2018_57_3_a5
ER  -