TY - JOUR AU - È. A. Kuz'min AU - V. V. Ilyukhin AU - N. V. Belov TI - Isolation of the basic system from the vector one according to two multiplicity peak (Feodorov group $P1$) JO - Doklady Akademii Nauk PY - 1970 SP - 812 EP - 813 VL - 193 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_193_4_a19/ LA - ru ID - DAN_1970_193_4_a19 ER -