@article{MOMA_1990__109_2_178471, author = {F. Dillen and K. Nomizu and L. Vranken}, title = {Conjugate {Connections} and {Radon's} {Theorem} in {Affine} {Differential} {Geometry.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {221--236}, publisher = {mathdoc}, volume = {109}, number = {2}, year = {1990}, zbl = {0712.53008}, url = {http://geodesic.mathdoc.fr/item/MOMA_1990__109_2_178471/} }