@article{JOLT_2013_23_4_a0,
     author = {Margit R\"osler and Michael Voit},
     title = {Olshanski {Spherical} {Functions} for {Infinite} {Dimensional} {Motion} {Groups} of {Fixed} {Rank}},
     journal = {Journal of Lie Theory},
     pages = {899--920},
     year = {2013},
     volume = {23},
     number = {4},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2013_23_4_a0/}
}