TY  - JOUR
AU  - I. S. Lomov
TI  - On the basis property of systems of nonregular root vectors of higher-order differential operators
JO  - Differencialʹnye uravneniâ
PY  - 1993
SP  - 74
EP  - 86
VL  - 29
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1993_29_1_a10/
LA  - ru
ID  - DE_1993_29_1_a10
ER  -