TY - JOUR AU - A. I. Mal'tsev TI - On the theory of computable families of objects JO - Algebra i logika PY - 1964 SP - 5 EP - 31 VL - 3 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1964_3_4_a0/ LA - ru ID - AL_1964_3_4_a0 ER -