1. Danielyan A.A.: On a polynomial approximation problem. J. Approx. Theory 162, 717–722 (2010)
2. Danielyan, A.A.: The peak-interpolation theorem of Bishop, Complex analysis and dynamical systems IV. Part 1, Contemp. Math., vol. 553, pp. 27–30. Amer. Math. Soc., Providence (2011)
3. Kolesnikov S.V.: On a certain theorem of M.V. Keldysh concerning the pointwise convergence of sequences of polynomials. Mat. Sb. 124(166), 568–570 (1984)
4. Koosis P.: Introduction to H p Spaces. Cambridge University Press, Cambridge (1980)
5. Privalov, I.I.: Boundary Properties of Analytic Functions, 2nd edn. GITTL, Moscow-Leningrad (1950; in Russian) (German edition: Randeigenschaften Analytischer Funktionen, Deutscher Verlag der Wissenschaften; 1956)