TY  - JOUR
AU  - V. I. Zhukovskii
TI  - Instability and conditional stability in the critical case of $n$ zero roots
JO  - Differencialʹnye uravneniâ
PY  - 1965
SP  - 1601
EP  - 1605
VL  - 1
IS  - 12
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1965_1_12_a6/
LA  - ru
ID  - DE_1965_1_12_a6
ER  -