TY  - JOUR
AU  - A. G. Eliseev
TI  - Theory of singular perturbations with a~non-smooth spectrum of the~limit operator
JO  - Sbornik. Mathematics
PY  - 1995
SP  - 951
EP  - 966
VL  - 186
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1995_186_7_a2/
LA  - en
ID  - SM_1995_186_7_a2
ER  -