@article{DAN_1962_145_3_a1,
     author = {V. I. Arnol'd},
     title = {On the classical perturbation theory and the stability problem of planetary systems},
     journal = {Doklady Akademii Nauk},
     pages = {487--490},
     publisher = {mathdoc},
     volume = {145},
     number = {3},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_145_3_a1/}
}