TY  - BOOK
AU  - Herrero, Domingo A.
TI  - APPROXIMATION OF HILBERT SPACE OPERATORS
SN  - 0470215771
U1  - 515.724 
PY  - 1989///
CY  - Harlow
PB  - Longman Scientific & Technical
KW  - Operator Theory
KW  - Hilbert Space
ER  -