1. Dual Algebras with Applications to Invariant Subspaces and Dilation Theory
2. Contractions with rich spectrum have invariant subspaces;Brown;J. Operator Theory,1979
3. The Theory of Subnormal Operators;Conway,1991
4. The distance to the analytic Toeplitz operators;Davidson;Illinois J. Math.,1987
5. Reflexive linear transformations;Deddens;Lin. Alg. Appl.,1975