1. A Survey of Numerical Methods for the Solution of Fredholm Integral Equations of the Second Kind;Atkinson,1976
2. Linear Operators, Part I: General Theory;Dunford,1958
3. Functional Analysis, Theory and Applications;Edwards,1965
4. Real and Abstract Analysis;Hewitt,1965
5. Functional Analysis in Normed Spáces;Kantorovich,1964