TY  - BOOK
AU  - Egorov, Yuri and Kondratiev, Vladimir
AU  - Kondratiev, Vladimir ; jt. auth.
TI  - On spectral theory of elliptic operators
T2  - Operator theory
U1  - 515.72 
PY  - 1996///
CY  - Basel
PB  - Birkhauser Verlag
ER  -