@article{GDZPPN002401150,
title = {A Property of Approximation Operators and Applications to Trauberian Constants.},
journal = {Mathematische Zeitschrift},
volume = {99},
year = {1967},
pages = {177-204},
zbl = {0176.34802},
url = {http://dml.mathdoc.fr/item/GDZPPN002401150}
}
Jakimovski, A.; Leviatan, D. A Property of Approximation Operators and Applications to Trauberian Constants.. Mathematische Zeitschrift, Tome 99 (1967) pp. 177-204. http://gdmltest.u-ga.fr/item/GDZPPN002401150/