TY  - JOUR
AU  - A. V. Strauss
TI  - On the multiplicity of the spectrum of a self-adjoint ordinary differential operator
JO  - Doklady Akademii Nauk
PY  - 1964
SP  - 771
EP  - 774
VL  - 155
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1964_155_4_a13/
LA  - ru
ID  - DAN_1964_155_4_a13
ER  -