1. Deshmukh, S., Al-Odan, H. and Shaman, T. A., Tangent bundle of the hypersurfaces in a Euclidean space, Acta. Math. Acad. Paedagog. Nyházi (N.S.), 23(1), 2007, 71–87.
2. Klingenberg, W. and Sasaki, S., On the tangent sphere bundle of a 2-sphere, Tohoku Math. J., 27, 1975, 49–56.
3. Konno, T., Killing vector fields on tangent sphere bundles, Kodai Math. J., 21, 1998, 61–72.
4. Konno, T. and Tanno S., Geodesics and Killing vector fields on the tangent sphere bundle, Nagoya Math. J., 151, 1998, 91–97.
5. Kowalski, O., Curvature of the induced Riemannian metric of the tangent bundle of Riemannian manifold, J. Reine Angew. Math., 250, 1971, 124–129.