TY  - BOOK
AU  - Douglas,Ronald G.
TI  - Banach algebra techniques in operator theory
U1  - 512.82 
PY  - 1972///
CY  - New York
PB  - Academic Press
KW  - Operator theory
KW  - Banach algebras
KW  - Hilbert space
KW  - Geometry
N1  - Includes index; Bibliography: p. 208-212
ER  -