@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/}
}