TY  - JOUR
AU  - L. Z. Fishman
TI  - Criteria for unsafe and safe boundaries of the domain of stability of systems with delay in the case of two pairs of purely imaginary roots
JO  - Differencialʹnye uravneniâ
PY  - 1995
SP  - 2020
EP  - 2024
VL  - 31
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1995_31_12_a8/
LA  - ru
ID  - DE_1995_31_12_a8
ER  -