@article{ELMA_1983__38_141325,
     author = {U. Abel},
     title = {Integralungleichungen aus der {Hilbertraum-Theorie.}},
     journal = {Elemente der Mathematik},
     pages = {144--152},
     publisher = {mathdoc},
     volume = {38},
     year = {1983},
     zbl = {0523.26012},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1983__38_141325/}
}