TY  - JOUR
AU  - N. G. Bulgakov
TI  - On the question of stability under constantly acting perturbations
JO  - Differencialʹnye uravneniâ
PY  - 1969
SP  - 856
EP  - 861
VL  - 5
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1969_5_5_a6/
LA  - ru
ID  - DE_1969_5_5_a6
ER  -