@article{JRAM_1827__2_183066,
     author = {J. Steiner},
     title = {Zwei polygonometrische {S\"atze.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {263--267},
     publisher = {mathdoc},
     volume = {2},
     year = {1827},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1827__2_183066/}
}