@article{JLT_2013_23_4_JLT_2013_23_4_a6,
     author = {G. Olshanski },
     title = {Projections of {Orbital} {Measures,} {Gelfand-Tsetlin} {Polytopes,} and {Splines}},
     journal = {Journal of Lie theory},
     pages = {1011--1022},
     publisher = {mathdoc},
     volume = {23},
     number = {4},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/JLT_2013_23_4_JLT_2013_23_4_a6/}
}