TY  - JOUR
AU  - M. L. Byalyi
AU  - L. V. Polterovich
TI  - Lagrangian projections of invariant tori of Hamiltonian systems with two degrees of freedom
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1989
SP  - 65
VL  - 23
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1989_23_1_a8/
LA  - ru
ID  - FAA_1989_23_1_a8
ER  -