TY  - BOOK
AU  - Kato,Tosio,1917-
TI  - A short introduction to perturbation theory for linear operators
SN  - 0387906665
PY  - 1982///
CY  - New York
PB  - Springer-Verlag
KW  - Linear operators
KW  - Perturbation (Mathematics)
N1  - Includes indexes; Bibliography: p.(149)-152
ER  -