TY  - JOUR
AU  - D. V. Il'in
TI  - The Schr\"{o}dinger operator with a $\delta$-potential: The case of degenerate resonances
JO  - Differencialʹnye uravneniâ
PY  - 2000
SP  - 124
EP  - 126
VL  - 36
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2000_36_1_a16/
LA  - ru
ID  - DE_2000_36_1_a16
ER  -