1. The Problem of Moments and Some Related Questions in Analysis;Akhiezer,1965
2. Polyharmonic Functions;Aronszajn,1983
3. Harmonic Function Theory;Axler,1992
4. Harmonic Analysis on Semigroups;Berg,1984
5. Padé-Type Approximation and General Orthogonal Polynomials;Brezinski,1980