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@article{MZ_1987__195_183684, author = {Katsumi Nomizu and Ulrich Pinkall}, title = {On the {Geometry} of {Affine} {Immersions.}}, journal = {Mathematische Zeitschrift}, pages = {165--178}, publisher = {mathdoc}, volume = {195}, year = {1987}, zbl = {0629.53012}, url = {http://geodesic.mathdoc.fr/item/MZ_1987__195_183684/} }
Katsumi Nomizu; Ulrich Pinkall. On the Geometry of Affine Immersions.. Mathematische Zeitschrift, Tome 195 (1987), pp. 165-178. http://geodesic.mathdoc.fr/item/MZ_1987__195_183684/