@article{GDZPPN002270943, title = {Carl Neumann}, journal = {Mathematische Annalen}, volume = {97}, year = {1927}, pages = {1-25}, url = {http://dml.mathdoc.fr/item/GDZPPN002270943} }
Hölder, O. Carl Neumann. Mathematische Annalen, Tome 97 (1927) pp. 1-25. http://gdmltest.u-ga.fr/item/GDZPPN002270943/