TY  - JOUR
AU  - Zh. Ling
TI  - Perturbation of eigenvalues and eigenfunctions for a second-order differential equation under perturbation of the boundary
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1963
VL  - 18
IS  - 4
UR  - http://geodesic.mathdoc.fr/item/RM_1963_18_4_a24/
LA  - ru
ID  - RM_1963_18_4_a24
ER  -