%0 Journal Article %A Kowalski, Oldřich %A Sekizawa, Masami %T On Riemannian geometry of tangent sphere bundles with arbitrary constant radius %J Archivum mathematicum %D 2008 %P 391-401 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_2008__44_5_a5/ %G en %F ARM_2008__44_5_a5