TY  - JOUR
AU  - V. I. Arnol'd
TI  - Proof of a~theorem of A.\,N.~Kolmogorov on the invariance of quasi-periodic motions under small perturbations of the Hamiltonian
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1963
SP  - 9
EP  - 36
VL  - 18
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1963_18_5_a1/
LA  - en
ID  - RM_1963_18_5_a1
ER  -