@article{MZ_1922__15_167708,
     author = {T. Carleman},
     title = {\"Uber die {Abelsche} {Integralgleichung} mit konstanten {Integrations-grenzen}},
     journal = {Mathematische Zeitschrift},
     pages = {111--120},
     publisher = {mathdoc},
     volume = {15},
     year = {1922},
     zbl = {48.0457.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1922__15_167708/}
}