TY - JOUR AU - K. F. Malavko TI - Convergence of Fourier series in systems of type $\{\varphi(nx)\}$ close to a trigonometric system JO - Doklady Akademii Nauk PY - 1958 SP - 29 EP - 32 VL - 118 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_118_1_a6/ LA - ru ID - DAN_1958_118_1_a6 ER -