@article{GDZPPN002191911,
title = {Killing vectors and geodesic flow vectors on tangent bundles.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {281},
year = {1976},
pages = {162-171},
zbl = {0317.53042},
url = {http://dml.mathdoc.fr/item/GDZPPN002191911}
}
Tanno, Shukichi. Killing vectors and geodesic flow vectors on tangent bundles.. Journal für die reine und angewandte Mathematik, Tome 281 (1976) pp. 162-171. http://gdmltest.u-ga.fr/item/GDZPPN002191911/