@article{JOLT_2009_19_2_a10,
     author = {Alexander G. Elashvili and Victor G. Kac and Ernest B. Vinberg},
     title = {On {Exceptional} {Nilpotents} in {Semisimple} {Lie} {Algebras}},
     journal = {Journal of Lie Theory},
     pages = {371--390},
     year = {2009},
     volume = {19},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2009_19_2_a10/}
}