1. Spectra of compact composition operators;Caughran;Proc. Amer. Math. Soc.,1975
2. Linear fractional composition operators on H2;Cowen;Integral Equations Operator Theory,1988
3. Composition Operators on Spaces of Analytic Functions;Cowen,1995
4. Banach Algebra Techniques in Operator Theory;Douglas,1972
5. C. Hammond, On the norm of a composition operator, thesis, University of Virginia, 2003