TY  - BOOK
AU  - Weidmann,Joachim
AU  - Szücs,Joseph
TI  - Linear operators in Hilbert spaces 
U1  - 519.92 WEI.S  
PY  - 1980///.
CY  - New York : 
PB  -  Springer, 
KW  - Linearer Operator
KW  -  Hilbertscher Raum
N1  - Includes index.
ER  -