TY  - JOUR
AU  - A. A. Stakun
TI  - Spectral properties of a singular differential operator
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 713
EP  - 716
VL  - 27
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_4_a24/
LA  - ru
ID  - DE_1991_27_4_a24
ER  -