@article{JRAM_1911__139_149337, author = {F. Schottky}, title = {Vier {Briefe} {Cayleys,} nebst {Vorbemerkung.}}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {1--6}, publisher = {mathdoc}, volume = {139}, year = {1911}, zbl = {41.0516.01}, url = {http://geodesic.mathdoc.fr/item/JRAM_1911__139_149337/} }