@article{JRAM_1831__7_146727,
     author = {L. Feldt},
     title = {Neuer {Beweis} der {Gau{\ss}ischen} {Formeln} in der sph\"arischen {Trigonometrie.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {68--71},
     publisher = {mathdoc},
     volume = {7},
     year = {1831},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1831__7_146727/}
}