TY  - BOOK
AU  - Kreyszig,Erwin
TI  - Introductory functional analysis with applications
SN  - 0471507318
U1  - 515.7 
PY  - 1989///
CY  - New York
PB  - Wiley
KW  - Functional analysis
N1  - Includes index; Bibliography: p. 675-679
ER  -