Voir la notice de l'article provenant de la source Math-Net.Ru
@article{FAA_1994_28_2_a11, author = {N. N. Nekhoroshev}, title = {The {Poincar\'e--Lyapunov--Liouville--Arnol'd} {Theorem}}, journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a}, pages = {67--69}, publisher = {mathdoc}, volume = {28}, number = {2}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/FAA_1994_28_2_a11/} }
N. N. Nekhoroshev. The Poincar\'e--Lyapunov--Liouville--Arnol'd Theorem. Funkcionalʹnyj analiz i ego priloženiâ, Tome 28 (1994) no. 2, pp. 67-69. http://geodesic.mathdoc.fr/item/FAA_1994_28_2_a11/