1. Special Functions;Andrews,1999
2. Orthogonal Polynomials and Special Functions;Askey,1975
3. Inequalities for polynomials;Askey,1986
4. Über eine trigonometrische Summe;Jackson;Rend. Circ. Mat. Palermo,1911
5. Topics in Polynomials: Extremal Problems, Inequalities, Zeros;Milovanović,1994