TY - JOUR AU - E. V. Oshman TI - Continuity of metric projection and some geometric properties of the unit sphere in a Banach space JO - Doklady Akademii Nauk PY - 1969 SP - 34 EP - 36 VL - 185 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1969_185_1_a7/ LA - ru ID - DAN_1969_185_1_a7 ER -