TY - JOUR AU - O. N. Golovin TI - Functor operations on the class of all groups JO - Doklady Akademii Nauk PY - 1963 SP - 12 EP - 15 VL - 149 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1963_149_1_a1/ LA - ru ID - DAN_1963_149_1_a1 ER -