TY  - JOUR
AU  - A. N. Degtev
TI  - Partially ordered sets of $1$-degrees that occur in recursively
JO  - Algebra i logika
PY  - 1976
SP  - 249
EP  - 266
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1976_15_3_a0/
LA  - ru
ID  - AL_1976_15_3_a0
ER  -