TY - JOUR AU - Yu. L. Ershov TI - Projective products of profinite groups JO - Algebra i logika PY - 1991 SP - 638 EP - 651 VL - 30 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AL_1991_30_6_a1/ LA - ru ID - AL_1991_30_6_a1 ER -