@article{1270130386,
author = {SAKATA, Hiroshi},
title = {Convexity Theorems for Riesz Means},
journal = {Tokyo J. of Math.},
volume = {14},
number = {2},
year = {1991},
pages = { 459-477},
language = {en},
url = {http://dml.mathdoc.fr/item/1270130386}
}
SAKATA, Hiroshi. Convexity Theorems for Riesz Means. Tokyo J. of Math., Tome 14 (1991) no. 2, pp. 459-477. http://gdmltest.u-ga.fr/item/1270130386/