TY - JOUR AU - R. R. Ashurov TI - Localization conditions of square partial sums of a multiple trigonometric Fourier series in the classes of S.\,M.~Nikol'skii JO - Matematičeskie zametki PY - 1989 SP - 3 EP - 7 VL - 46 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1989_46_4_a0/ LA - ru ID - MZM_1989_46_4_a0 ER -