TY - JOUR AU - M. Sh. Shabozov AU - M. S. Saidusajnov TI - Mean-square approximation of functions of a complex variable by Fourier sums in orthogonal systems JO - Trudy Instituta matematiki i mehaniki PY - 2019 SP - 258 EP - 272 VL - 25 IS - 2 UR - http://geodesic.mathdoc.fr/item/TIMM_2019_25_2_a22/ LA - ru ID - TIMM_2019_25_2_a22 ER -