@article{MM2_1994__83_3-4_155958,
     author = {Dmitrii I. Panyushev},
     title = {Complexity and nilpontent orbits.},
     journal = {Manuscripta mathematica},
     pages = {223--238},
     publisher = {mathdoc},
     volume = {83},
     number = {3-4},
     year = {1994},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MM2_1994__83_3-4_155958/}
}