Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{BAG_1985__20_138317, author = {J. Hilgert and K.H. Hofmann and J.D. Lawson}, title = {Controllability of systems on a nilpotent {Lie} group}, journal = {Beitr\"age zur Algebra und Geometrie}, pages = {185--190}, publisher = {mathdoc}, volume = {20}, year = {1985}, zbl = {0579.22010}, url = {http://geodesic.mathdoc.fr/item/BAG_1985__20_138317/} }
J. Hilgert; K.H. Hofmann; J.D. Lawson. Controllability of systems on a nilpotent Lie group. Beiträge zur Algebra und Geometrie, Tome 20 (1985), pp. 185-190. http://geodesic.mathdoc.fr/item/BAG_1985__20_138317/