TY  - GEN
AU  - Egorov,ëIìUV
AU  - Kondrat§ev,V.P
TI  - On spectral theory of elliptic operators
T2  - Operator theory, advances and applications
SN  - 3764353902 (Basel : acid-free paper)
U1  - 515/.7248 
PY  - 1996///
CY  - Basel, Boston
PB  - Birkhèauser
KW  - Spectral theory (Mathematics)
KW  - Differential equations, Elliptic
KW  - Elliptic operators
KW  - Eigenvalues
ER  -