TY  - JOUR
AU  - R. R. Gadyl'shin
TI  - Ramification of a multiple eigenvalue of the Dirichlet problem for the Laplacian under singular perturbation of the boundary condition
JO  - Matematičeskie zametki
PY  - 1992
SP  - 42
EP  - 55
VL  - 52
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1992_52_4_a5/
LA  - ru
ID  - MZM_1992_52_4_a5
ER  -