TY  - JOUR
AU  - V. A. Yakubovich
TI  - Nonoscillation of linear periodic Hamiltonian equations and related problems
JO  - Algebra i analiz
PY  - 1991
SP  - 229
EP  - 253
VL  - 3
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_1991_3_5_a10/
LA  - ru
ID  - AA_1991_3_5_a10
ER  -