@article{GDZPPN002444887,
title = {A short proof of a result of Kogbetliantz on the positivity of certain Ces\`aro means.},
journal = {Mathematische Zeitschrift},
volume = {221},
year = {1996},
pages = {189-192},
zbl = {0840.41019},
url = {http://dml.mathdoc.fr/item/GDZPPN002444887}
}
Reimer, M. A short proof of a result of Kogbetliantz on the positivity of certain Cesàro means.. Mathematische Zeitschrift, Tome 221 (1996) pp. 189-192. http://gdmltest.u-ga.fr/item/GDZPPN002444887/