1. G. Andrews, R. Askey (1985): Classical Orthogonal Polynomials. In: Lecture Notes in Mathematics, Vol. 1171, Berlin: Springer-Verlag, pp. 36?62.
2. R. Askey (1988):Beta integrals and q-extensions. Proceedings of the Ramanujan Centennial International Conference, Ramanujan Mathematical Society, pp. 85?102.
3. R. Askey, J. A. Wilson (1979):A set of orthogonal polynomials that generalize the Racah coefficients or 6j-symbols. SIAM J. Math. Anal.,10(5):1008?1016.
4. R. Askey, J. A. Wilson (1985):Some basic hypergeometric orthogonal polynomials that generalize Jacobi polynomials. Mem. Amer. Math. Soc.,319:55.
5. N. M. Atakishiyev, G. I. Kuznetsov, S. K. Suslov (1991):The CHARM polynomials. Proceedings of the International Symposium on Orthogonal Polynomials and Their Applications (Brezinski, Gori, Ronveaux, eds.), J. C. Baltzer AG, Basel, Switzerland, pp. 15?16.