TY  - JOUR
AU  - B. F. Ivanov
TI  - A frequency criterion for smoothness, with respect to the parameters, of solutions of a class of linear systems
JO  - Differencialʹnye uravneniâ
PY  - 1997
SP  - 1001
VL  - 33
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1997_33_7_a20/
LA  - ru
ID  - DE_1997_33_7_a20
ER  -