@article{01736443,
title = {An invariant symmetric non-selfadjoint differential operator.},
journal = {Journal of Lie Theory},
volume = {12},
year = {2002},
pages = {245-257},
zbl = {1010.22017},
language = {en},
url = {http://dml.mathdoc.fr/item/01736443}
}
Thomas, Erik G.F. An invariant symmetric non-selfadjoint differential operator.. Journal of Lie Theory, Tome 12 (2002) pp. 245-257. http://gdmltest.u-ga.fr/item/01736443/