1. Nest Algebras;Davidson,1988
2. System Theory: A Hilbert Space Approach;Feintuch,1982
3. The gap metric robustness for linear time-varying systems;Feintuch;Linear Algebra Appl.,1994
4. Banach Algebra Techniques in Operator Theory;Douglas,1972
5. Optimization by Vector Space Methods;Luenberger,1968