1. Characterization theorems for orthogonal polynomials;Al-Salam,1990
2. Theory of reproducing kernels;Aronszajn;Trans. Amer. Math. Soc.,1950
3. Polynomial Expansions of Analytic Functions;Boas,1964
4. Subnormal operators;Bram;Duke Math. J.,1955
5. Orthogonal Newton polynomials;de Branges;Adv. Math.,1980