@article{GDZPPN002383969,
title = {Direct theorems on methods of summability III: absolute summabilty functions.},
journal = {Mathematische Zeitschrift},
volume = {59},
year = {1953},
pages = {231-246},
zbl = {0053.03603},
url = {http://dml.mathdoc.fr/item/GDZPPN002383969}
}
Lorentz, G.G.; Macphail, M.S. Direct theorems on methods of summability III: absolute summabilty functions.. Mathematische Zeitschrift, Tome 59 (1953) pp. 231-246. http://gdmltest.u-ga.fr/item/GDZPPN002383969/