Voir la notice de l'article provenant de la source Mathematicac Balkanica website
@article{MABA_1997_11_3-4_a21, author = {O. Agratini}, title = {On a {Class} of {Linear} {Approximating} {Operators}}, journal = {Mathematica balkanica}, pages = {407}, publisher = {mathdoc}, volume = {11}, number = {3-4}, year = {1997}, url = {http://geodesic.mathdoc.fr/item/MABA_1997_11_3-4_a21/} }
O. Agratini. On a Class of Linear Approximating Operators. Mathematica balkanica, Tome 11 (1997) no. 3-4, p. 407. http://geodesic.mathdoc.fr/item/MABA_1997_11_3-4_a21/