TY  - JOUR
AU  - I. V. Stankevich
TI  - On the perturbation theory of a continuous spectrum
JO  - Doklady Akademii Nauk
PY  - 1962
SP  - 279
EP  - 282
VL  - 144
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1962_144_2_a7/
LA  - ru
ID  - DAN_1962_144_2_a7
ER  -