@article{JRAM_1879__86_148396,
     author = {E. Netto},
     title = {Beitrag zur {Mannigfaltigkeitslehre.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {263--268},
     publisher = {mathdoc},
     volume = {86},
     year = {1879},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1879__86_148396/}
}