@article{JLT_2008_18_3_JLT_2008_18_3_a0,
     author = {F. Levstein and L. Saal },
     title = {Generalized {Gelfand} {Pairs} {Associated} to {Heisenberg} {Type} {Groups}},
     journal = {Journal of Lie theory},
     pages = {503--515},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JLT_2008_18_3_JLT_2008_18_3_a0/}
}