@article{JOLT_2014_24_1_a6,
     author = {Juan Tirao and Ignacio Zurri\'an},
     title = {Spherical {Functions:} {The} {Spheres} versus the {Projective} {Spaces}},
     journal = {Journal of Lie Theory},
     pages = {147--157},
     year = {2014},
     volume = {24},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2014_24_1_a6/}
}