TY  - JOUR
AU  - V. B. Lidskii
AU  - P. A. Frolov
TI  - The topological structure of stability-regions of a self-adjoint system of differential equations with periodic coefficients
JO  - Doklady Akademii Nauk
PY  - 1965
SP  - 764
EP  - 766
VL  - 161
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1965_161_4_a6/
LA  - ru
ID  - DAN_1965_161_4_a6
ER  -