@article{03687787, title = {Gelfand pairs and spherical functions.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2}, year = {1979}, pages = {153-162}, doi = {10.1155/S0161171279000168}, zbl = {0441.33015}, language = {en}, url = {http://dml.mathdoc.fr/item/03687787} }
Dieudonné, Jean. Gelfand pairs and spherical functions.. International Journal of Mathematics and Mathematical Sciences, Tome 2 (1979) pp. 153-162. doi : 10.1155/S0161171279000168. http://gdmltest.u-ga.fr/item/03687787/