TY  - JOUR
AU  - V. P. Dobritsa
TI  - Semilattices of computable indexings of classes of
JO  - Algebra i logika
PY  - 1987
SP  - 558
EP  - 576
VL  - 26
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1987_26_5_a2/
LA  - ru
ID  - AL_1987_26_5_a2
ER  -