TY - JOUR AU - A. A. Zhensykbaev TI - Spline approximation and optimal recovery of operators JO - Sbornik. Mathematics PY - 1995 SP - 393 EP - 409 VL - 80 IS - 2 UR - http://geodesic.mathdoc.fr/item/SM_1995_80_2_a6/ LA - en ID - SM_1995_80_2_a6 ER -