TY  - JOUR
AU  - I. S. Kac
TI  - Behaviour of spectral functions of differential systems with boundary conditions at a singular endpoint
JO  - Doklady Akademii Nauk
PY  - 1964
SP  - 34
EP  - 37
VL  - 157
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1964_157_1_a7/
LA  - ru
ID  - DAN_1964_157_1_a7
ER  -