1. Jentzsch-Szegö type theorems for zeros of best approximations;Blatt;J. London Math. Soc. (2),1988
2. Theory of Hp Spaces;Duren,1970
3. On interpolation, III;Erdös;Ann. of Math.,1940
4. Lectures on Complex Approximation;Gaier,1987
5. Orthogonal Polynomials: Estimates, Asymptotic Formulas, and Series of Polynomials Orthogonal on the Unit Circle and on an Interval;Gerominus,1961