TY - JOUR AU - R. A. Lasuriya TI - $\varphi$-Strong Approximation of Functions by Trigonometric Polynomials JO - Matematičeskie zametki PY - 2017 SP - 52 EP - 63 VL - 102 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_2017_102_1_a5/ LA - ru ID - MZM_2017_102_1_a5 ER -