TY - JOUR AU - V. I. Frenkel' TI - Algorithm problems in partially ordered groups JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1962 VL - 17 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1962_17_4_a13/ LA - ru ID - RM_1962_17_4_a13 ER -