@article{MAN_1913__74_158643,
     author = {I. Schur},
     title = {\"Uber die {\"Aquivalenz} der {Ces\`aroschen} und {H\"olderschen} {Mittelwerte}},
     journal = {Mathematische Annalen},
     pages = {447--458},
     year = {1913},
     volume = {74},
     zbl = {44.0280.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1913__74_158643/}
}