TY - JOUR AU - D. E. Men'shov TI - Application of Ces\`aro summability methods of negative order to trigonometric Fourier series of summable and square summable functions JO - Sbornik. Mathematics PY - 1974 SP - 497 EP - 515 VL - 22 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1974_22_4_a1/ LA - en ID - SM_1974_22_4_a1 ER -