@article{JRAM_1831__7_146748,
     author = {C. Gudermann},
     title = {Umformung einer {Reihe} von sehr allgemeiner {Form.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {306--308},
     year = {1831},
     volume = {7},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1831__7_146748/}
}