@article{1178241540,
author = {Sakata, Hiroshi},
title = {On convexity theorems for Riesz means},
journal = {Tohoku Math. J. (2)},
volume = {24},
number = {4},
year = {1972},
pages = { 301-307},
language = {en},
url = {http://dml.mathdoc.fr/item/1178241540}
}
Sakata, Hiroshi. On convexity theorems for Riesz means. Tohoku Math. J. (2), Tome 24 (1972) no. 4, pp. 301-307. http://gdmltest.u-ga.fr/item/1178241540/