TY - JOUR AU - G. G. Magaril-Il'yaev AU - K. Yu. Osipenko TI - Optimal recovery of functions and their derivatives from Fourier coefficients JO - Sbornik. Mathematics PY - 2002 SP - 387 EP - 407 VL - 193 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2002_193_3_a5/ LA - en ID - SM_2002_193_3_a5 ER -