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@article{MAN_1893__42_157659, author = {M. Simon}, title = {Zur {Volumbestimmung} in der {Lobatschewsky'schen} {Geometrie.}}, journal = {Mathematische Annalen}, pages = {471--484}, publisher = {mathdoc}, volume = {42}, year = {1893}, zbl = {25.0867.02}, url = {http://geodesic.mathdoc.fr/item/MAN_1893__42_157659/} }
M. Simon. Zur Volumbestimmung in der Lobatschewsky'schen Geometrie.. Mathematische Annalen, Tome 42 (1893), pp. 471-484. http://geodesic.mathdoc.fr/item/MAN_1893__42_157659/