@article{MZ_1959__72_183604,
     author = {Zeev Nehari},
     title = {On a class of non-linear integral equations.},
     journal = {Mathematische Zeitschrift},
     pages = {175--183},
     publisher = {mathdoc},
     volume = {72},
     year = {1959},
     zbl = {0092.10903},
     url = {http://geodesic.mathdoc.fr/item/MZ_1959__72_183604/}
}