@article{GDZPPN00224540X, title = {Neue S\"atze \"uber das Newton'sche Potential.}, journal = {Mathematische Annalen}, volume = {16}, year = {1880}, pages = {432-438}, zbl = {12.0715.04}, url = {http://dml.mathdoc.fr/item/GDZPPN00224540X} }
Neumann. Neue Sätze über das Newton'sche Potential.. Mathematische Annalen, Tome 16 (1880) pp. 432-438. http://gdmltest.u-ga.fr/item/GDZPPN00224540X/