@article{JMPA_1952_9_31__253_0,
     author = {Ostrowski, Alexandre},
     title = {Sur quelques applications des fonctions convexes et concaves au sens de {I.} {Schur}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {253--292},
     volume = {9e s{\'e}rie, 31},
     year = {1952},
     mrnumber = {52475},
     zbl = {0047.29602},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/JMPA_1952_9_31__253_0/}
}