@article{MAN_1991__289_4_164766,
     author = {L.D. Kay},
     title = {On the {Kobayashi-Royden} metric for ellipsoids.},
     journal = {Mathematische Annalen},
     pages = {55--72},
     publisher = {mathdoc},
     volume = {289},
     number = {4},
     year = {1991},
     zbl = {0699.32012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__289_4_164766/}
}