@article{GDZPPN002063255, title = {The normality of closures of orbits in a Lie algebra.}, journal = {Commentarii mathematici Helvetici}, volume = {54}, year = {1979}, pages = {105-110}, zbl = {0395.14014}, url = {http://dml.mathdoc.fr/item/GDZPPN002063255} }
Hesselink, Wim. The normality of closures of orbits in a Lie algebra.. Commentarii mathematici Helvetici, Tome 54 (1979) pp. 105-110. http://gdmltest.u-ga.fr/item/GDZPPN002063255/