TY  - BOOK
AU  - Helffer, Bernard.
TI  - Semi-classical analysis for the Schrodinger operator and applications
SN  - 3540500766
PY  - 1988///
CY  - Berlin
PB  - Springer-Verlag
KW  -  Schrodinger operator
KW  -  Differential equations partial
KW  - asymptotic theory
KW  -  Spectal theory
N1  - Includes bibliographical references
ER  -