TY - JOUR AU - V. A. Koshcheev TI - Chebyshev systems of continuous functions with values in two-dimensional strictly convex normed space JO - Matematičeskie zametki PY - 1983 SP - 365 EP - 383 VL - 33 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1983_33_3_a4/ LA - ru ID - MZM_1983_33_3_a4 ER -