@article{AIHPA_1995__62_2_103_0,
     author = {Unterberger, Andr\'e},
     title = {Relativity, spherical functions and the hypergeometric equation},
     journal = {Annales de l'I.H.P. Physique th\'eorique},
     pages = {103--144},
     publisher = {Gauthier-Villars},
     volume = {62},
     number = {2},
     year = {1995},
     mrnumber = {1317183},
     zbl = {0834.43011},
     language = {en},
     url = {http://archive.numdam.org/item/AIHPA_1995__62_2_103_0/}
}