@article{MZ_1968__106_171010,
     author = {Klaus Wiener},
     title = {\"Uber nichtlineare {Integrodifferentialgleichungen} mit {Hadamard-Integralen.}},
     journal = {Mathematische Zeitschrift},
     pages = {123--138},
     publisher = {mathdoc},
     volume = {106},
     year = {1968},
     zbl = {0162.43503},
     url = {http://geodesic.mathdoc.fr/item/MZ_1968__106_171010/}
}