@article{1195525110,
author = {Izumi, Shin-ichi and Sat\^o, Masako and Sunouchi, Gen-ichir\^o},
title = {Fourier series, XIV. Order of approximation of partial sums and Ces\`aro means},
journal = {Proc. Japan Acad.},
volume = {33},
number = {10},
year = {1957},
pages = { 114-118},
language = {en},
url = {http://dml.mathdoc.fr/item/1195525110}
}
Izumi, Shin-ichi; Satô, Masako; Sunouchi, Gen-ichirô. Fourier series, XIV. Order of approximation of partial sums and Cesàro means. Proc. Japan Acad., Tome 33 (1957) no. 10, pp. 114-118. http://gdmltest.u-ga.fr/item/1195525110/