@article{MZ_1995__218_4_174712,
     author = {Dirk Mittenhuber and Karl-Herrmann Neeb},
     title = {On the exponential function of an ordered manifold with affine connection.},
     journal = {Mathematische Zeitschrift},
     pages = {1--24},
     publisher = {mathdoc},
     volume = {218},
     number = {4},
     year = {1995},
     zbl = {0814.53026},
     url = {http://geodesic.mathdoc.fr/item/MZ_1995__218_4_174712/}
}