@article{AIF_1999__49_5_1453_0,
     author = {Panyushev, Dmitri I.},
     title = {On spherical nilpotent orbits and beyond},
     journal = {Annales de l'Institut Fourier},
     pages = {1453--1476},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {49},
     number = {5},
     year = {1999},
     doi = {10.5802/aif.1726},
     mrnumber = {2000i:14072},
     zbl = {0944.17013},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/aif.1726/}
}