TY  - JOUR
AU  - A. M. Kholkin
AU  - F. S. Rofe-Beketov
TI  - On Spectrum of Differential Operator with Block-Triangular Matrix Coefficients
JO  - Žurnal matematičeskoj fiziki, analiza, geometrii
PY  - 2014
SP  - 44
EP  - 63
VL  - 10
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/JMAG_2014_10_1_a1/
LA  - en
ID  - JMAG_2014_10_1_a1
ER  -