@article{MAN_1890__35_157458,
     author = {Harnack},
     title = {Beitr\"age zur {Theorie} des {Cauchy'schen} {Integrales}},
     journal = {Mathematische Annalen},
     pages = {1--18},
     publisher = {mathdoc},
     volume = {35},
     year = {1890},
     zbl = {21.0994.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1890__35_157458/}
}