@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/