TY  - JOUR
AU  - E. G. D'yakonov
TI  - On Spectral Problems in Energy Spaces on Composite Manifolds with Singular Geometry of the Blocks:~I
JO  - Differencialʹnye uravneniâ
PY  - 2004
SP  - 874
EP  - 886
VL  - 40
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_2004_40_7_a1/
LA  - ru
ID  - DE_2004_40_7_a1
ER  -