TY  - JOUR
AU  - V. L. Selivanov
TI  - Applications of precomplete numerations to $tt$-degrees and

JO  - Algebra i logika
PY  - 1989
SP  - 75
EP  - 82
VL  - 28
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1989_28_1_a5/
LA  - ru
ID  - AL_1989_28_1_a5
ER  -