TY - JOUR AU - L. P. Vlasov AU - G. M. Ustinov TI - Closed faces of the unit ball in Banach spaces JO - Doklady Akademii Nauk PY - 1983 SP - 529 EP - 531 VL - 273 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1983_273_3_a2/ LA - ru ID - DAN_1983_273_3_a2 ER -