@article{JRAM_1892__109_148844,
     author = {Georg Landsberg},
     title = {Zur {Theorie} der periodischen {Kettenbr\"uche.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {231--237},
     publisher = {mathdoc},
     volume = {109},
     year = {1892},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1892__109_148844/}
}