@article{JLT_2013_23_3_JLT_2013_23_3_a6,
     author = {M. Dawson and G. �lafsson and J. A. Wolf },
     title = {Direct {Systems} of {Spherical} {Functions} and {Representations}},
     journal = {Journal of Lie theory},
     pages = {711--729},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JLT_2013_23_3_JLT_2013_23_3_a6/}
}