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@article{MOMA_1963__67_177225, author = {F. Schurer}, title = {Some {Remarks} on the {Approximation} of {Functions} by {Some} {Positive} {Linear} {Operators.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {353--358}, publisher = {mathdoc}, volume = {67}, year = {1963}, zbl = {0163.30701}, url = {http://geodesic.mathdoc.fr/item/MOMA_1963__67_177225/} }
F. Schurer. Some Remarks on the Approximation of Functions by Some Positive Linear Operators.. Monatshefte für Mathematik, Tome 67 (1963), pp. 353-358. http://geodesic.mathdoc.fr/item/MOMA_1963__67_177225/