TY  - JOUR
AU  - M. Kh. Faizrakhmanov
TI  - Some properties of the upper semilattice of computable families of computably enumerable sets
JO  - Algebra i logika
PY  - 2021
SP  - 195
EP  - 209
VL  - 60
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_2021_60_2_a5/
LA  - ru
ID  - AL_2021_60_2_a5
ER  -