TY - JOUR AU - Z. A. Chanturiya TI - The modulus of variation of a function and its application in the theory of Fourier series JO - Doklady Akademii Nauk PY - 1974 SP - 63 EP - 66 VL - 214 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_214_1_a14/ LA - ru ID - DAN_1974_214_1_a14 ER -