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@article{MZ_1951__54_169210, author = {Wilhelm Klingenberg}, title = {Zur affinen {Differentialgeometrie} {I.}}, journal = {Mathematische Zeitschrift}, pages = {65--80}, publisher = {mathdoc}, volume = {54}, year = {1951}, language = {de}, url = {http://geodesic.mathdoc.fr/item/MZ_1951__54_169210/} }
Wilhelm Klingenberg. Zur affinen Differentialgeometrie I.. Mathematische Zeitschrift, Tome 54 (1951), pp. 65-80. http://geodesic.mathdoc.fr/item/MZ_1951__54_169210/