1. Abdullayev F G. On the Orthogonal Polynomials in Domains with Quasiconformal Boundary (in Russian). Donetsk: Dissertation, 1986
2. Abdullayev F G. On the convergence of Bieberbach polynomials in domains with interior zero angles (in Russian). Dokl Akad Nauk Ukrain SSR Ser A, 1989, 12:3–5
3. Abdullayev F G. On the convergence of Fourier series by orthogonal polynomials in domains with piecewisequasiconformal boundary. In: Theory of Mapping and Approx. Kiev: Naukova Dumka, 1989, 3–12
4. Abdullayev F G. Uniform convergence of the generalized Bieberbach polynomials in regions with non zero angles. Acta Math Hung, 1997, 77:223–246
5. Abdullayev F G. Uniform convergence of generalized Bieberbach polynomials in regions with zero angles. Czechoslovak Math J, 2001, 51:643–660