TY  - JOUR
AU  - A. F. Zubova
TI  - A study of stability and instability zones for equations of the
JO  - Doklady Akademii Nauk
PY  - 1992
SP  - 483
EP  - 485
VL  - 325
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1992_325_3_a12/
LA  - ru
ID  - DAN_1992_325_3_a12
ER  -