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@article{ELMA_1955__10_140613, author = {R. Sauer}, title = {Elementargeometrische {Modelle} zur {Differentialgeometrie.} {(Fortsetzung).}}, journal = {Elemente der Mathematik}, pages = {4--11}, publisher = {mathdoc}, volume = {10}, year = {1955}, zbl = {0064.15901}, url = {http://geodesic.mathdoc.fr/item/ELMA_1955__10_140613/} }
R. Sauer. Elementargeometrische Modelle zur Differentialgeometrie. (Fortsetzung).. Elemente der Mathematik, Tome 10 (1955), pp. 4-11. http://geodesic.mathdoc.fr/item/ELMA_1955__10_140613/