TY  - JOUR
AU  - A. S. Pechentsov
TI  - Boundary value problems for differential equations, which contain a parameter, with multiple roots of the characteristic equation
JO  - Differencialʹnye uravneniâ
PY  - 1984
SP  - 263
EP  - 273
VL  - 20
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1984_20_2_a9/
LA  - ru
ID  - DE_1984_20_2_a9
ER  -