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@article{MS2_1961__9_165771, author = {Sigurdur Helgason}, title = {Some {Remarks} on the {Exponential} {Mapping} for an {Affine} {Connection.}}, journal = {Mathematica Scandinavica}, pages = {129--146}, publisher = {mathdoc}, volume = {9}, year = {1961}, zbl = {0101.14305}, url = {http://geodesic.mathdoc.fr/item/MS2_1961__9_165771/} }
Sigurdur Helgason. Some Remarks on the Exponential Mapping for an Affine Connection.. Mathematica Scandinavica, Tome 9 (1961), pp. 129-146. http://geodesic.mathdoc.fr/item/MS2_1961__9_165771/