Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MM2_1973__8_154149, author = {Walter Trebels}, title = {\"Uber {Jackson-} und {Bernstein-Typ} {Ungleichungen} f\"ur lineare {Approximationsverfahren} in {Lp} {(En).}}, journal = {Manuscripta mathematica}, pages = {287--318}, publisher = {mathdoc}, volume = {8}, year = {1973}, zbl = {0252.41018}, url = {http://geodesic.mathdoc.fr/item/MM2_1973__8_154149/} }
Walter Trebels. Über Jackson- und Bernstein-Typ Ungleichungen für lineare Approximationsverfahren in Lp (En).. Manuscripta mathematica, Tome 8 (1973), pp. 287-318. http://geodesic.mathdoc.fr/item/MM2_1973__8_154149/