TY  - JOUR
AU  - S. A. Nazarov
TI  - The two terms asymptotics of the solutions of spectral problems with singular perturbations
JO  - Sbornik. Mathematics
PY  - 1991
SP  - 307
EP  - 340
VL  - 69
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1991_69_2_a0/
LA  - en
ID  - SM_1991_69_2_a0
ER  -