TY  - JOUR
AU  - G. A. Chechkin
TI  - Asymptotic expansions of eigenvalues and eigenfunctions of an elliptic operator in a domain with many ``light'' concentrated masses situated on the boundary. Two-dimensional case
JO  - Izvestiya. Mathematics 
PY  - 2005
SP  - 805
EP  - 846
VL  - 69
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2005_69_4_a7/
LA  - en
ID  - IM2_2005_69_4_a7
ER  -