TY  - JOUR
AU  - V. L. Selivanov
TI  - Fine hierarchies of arithmetic sets, and definable index sets
JO  - Matematičeskie trudy
PY  - 1989
SP  - 165
EP  - 185
VL  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MT_1989_12_a8/
LA  - ru
ID  - MT_1989_12_a8
ER  -