@article{JRAM_1881__90_148467,
     author = {H. Bruns},
     title = {Zur {Theorie} der {Kugelfunctionen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {322--328},
     year = {1881},
     volume = {90},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1881__90_148467/}
}