@article{MAN_1904__58_158133,
     author = {O.D. Kellogg},
     title = {Unstetigkeiten in den linearen {Integralgleichungen.}},
     journal = {Mathematische Annalen},
     pages = {441--456},
     publisher = {mathdoc},
     volume = {58},
     year = {1904},
     url = {http://geodesic.mathdoc.fr/item/MAN_1904__58_158133/}
}