TY  - JOUR
AU  - Yu. G. Ventsov
TI  - The effective choice problem for relations and reducibilities
JO  - Algebra i logika
PY  - 1992
SP  - 101
EP  - 118
VL  - 31
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1992_31_2_a0/
LA  - ru
ID  - AL_1992_31_2_a0
ER  -