TY  - JOUR
AU  - I. S. Lomov
TI  - A theorem on the unconditional basis property of root vectors of second-order weighted differential operators
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 1550
EP  - 1563
VL  - 27
IS  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_9_a9/
LA  - ru
ID  - DE_1991_27_9_a9
ER  -