@article{MAN_1881__18_156968,
     author = {Rausenberger},
     title = {Theorie der allgemeinen {Periodicit\"at}},
     journal = {Mathematische Annalen},
     pages = {379--409},
     year = {1881},
     volume = {18},
     url = {http://geodesic.mathdoc.fr/item/MAN_1881__18_156968/}
}