Voir la notice de l'article provenant de la source Heldermann Verlag
@article{JLT_1998_8_1_a10, author = {A. G. Robertson}, title = {Crofton {Formulae} and {Geodesic} {Distance} in {Hyperbolic} {Spaces}}, journal = {Journal of Lie theory}, pages = {163--172}, publisher = {mathdoc}, volume = {8}, number = {1}, year = {1998}, url = {http://geodesic.mathdoc.fr/item/JLT_1998_8_1_a10/} }
A. G. Robertson. Crofton Formulae and Geodesic Distance in Hyperbolic Spaces. Journal of Lie theory, Tome 8 (1998) no. 1, pp. 163-172. http://geodesic.mathdoc.fr/item/JLT_1998_8_1_a10/