TY  - JOUR
AU  - Yu. D. Golovatyj
AU  - S. A. Nazarov
AU  - O. A. Oleinik
TI  - Asymptotic expansions of eigenvalues and eigenfunctions in problems on oscillations of a~medium with concentrated perturbations
JO  - Informatics and Automation
PY  - 1990
SP  - 42
EP  - 60
VL  - 192
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1990_192_a4/
LA  - ru
ID  - TRSPY_1990_192_a4
ER  -