@article{GDZPPN002222817,
title = {Some Summability Invariants.},
journal = {Manuscripta mathematica},
volume = {31},
year = {1980},
pages = {363-378},
zbl = {0435.40008},
url = {http://dml.mathdoc.fr/item/GDZPPN002222817}
}
Beekmann, W.; Chang, Shao-Chien. Some Summability Invariants.. Manuscripta mathematica, Tome 31 (1980) pp. 363-378. http://gdmltest.u-ga.fr/item/GDZPPN002222817/