TY - JOUR TI - Hardy, G. H., and J. E. Littlewood, Solution of the Cesàro summability problem for power-series and Fourier series JO - Mathematische Zeitschrift PY - 1924 SP - 67 EP - 96 VL - 19 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1924__19_167766/ ID - MZ_1924__19_167766 ER -