@article{PIM_1948_S_S_II_02_a9,
     author = {J. Karamata},
     title = {In\'egalit\'es {Relatives} {Aux} {Quotients} {Et} {\`A} {La} {Diff\'erence} {De} \ensuremath{\int}fg {Et} \ensuremath{\int}f \ensuremath{\int}g},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {131 },
     publisher = {mathdoc},
     volume = {_S_S_II},
     number = {02},
     year = {1948},
     url = {http://geodesic.mathdoc.fr/item/PIM_1948_S_S_II_02_a9/}
}