@article{02129205,
title = {A conjecture related to the approximation operators of binomial type.},
journal = {General Mathematics},
volume = {6},
year = {1998},
pages = {39-49},
zbl = {1052.41510},
language = {en},
url = {http://dml.mathdoc.fr/item/02129205}
}
Lupaş, Alexandru. A conjecture related to the approximation operators of binomial type.. General Mathematics, Tome 6 (1998) pp. 39-49. http://gdmltest.u-ga.fr/item/02129205/