@article{JLT_2014_24_1_JLT_2014_24_1_a6,
     author = {J. Tirao and I. Zurri�n },
     title = {Spherical {Functions:} {The} {Spheres} versus the {Projective} {Spaces}},
     journal = {Journal of Lie theory},
     pages = {147--157},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2014},
     url = {http://geodesic.mathdoc.fr/item/JLT_2014_24_1_JLT_2014_24_1_a6/}
}