@article{MZ_1920__8_167592,
     author = {J., Horn},
     title = {Laplacesche {Integrale} und {Gammaquotientenreihen} in der {Theorie} der linearen {Differentialgleichungen} und {Volterraschen} {Integralgleichungen}},
     journal = {Mathematische Zeitschrift},
     pages = {100--114},
     publisher = {mathdoc},
     volume = {8},
     year = {1920},
     zbl = {47.0396.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1920__8_167592/}
}