TY  - BOOK
AU  - Bérard,Pierre H.
TI  - Spectral geometry: direct and inverse problems 
T2  - Lecture notes in mathematics
SN  - 0387167889
PY  - 1986///
CY  - Berlin , New York 
PB  - Springer-Verlag
KW  - Spectral geometry
KW  - Eigenvalues
KW  - Operator theory
N1  - "Subseries: Instituto de Mathemática Pura e Aplicada, Rio de Janeiro."; Includes bibliographical references and index
ER  -