%0 Journal Article %A A. G. Robertson %T Crofton Formulae and Geodesic Distance in Hyperbolic Spaces %J Journal of Lie theory %D 1998 %P 163-172 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_1998_8_1_a10/ %F JLT_1998_8_1_a10