1. M. Abramowitz and I.A. Stegun (eds.),Handbook of Mathematical Functions, 7th printing, Dover (New York, 1970).
2. K.-J. F�rster and K. Petras, On estimates for the weights in Gaussian quadrature in the ultraspherical case,Math. Comp.,55 (1990), 243?264.
3. K.-J. F�rster and K. Petras, On the zeros of ultraspherical polynomials and Bessel functions, in:Orthogonal Polynomials and their Applications (C. Brezinski, L. Gori and A. Ronveaux, eds.), IMACS Ann. Comput. Appl. Math. Vol. 9 (1991), pp. 257?262.
4. K.-J. F�rster and K. Petras, On the variance of Gaussian quadrature formulae in the ultraspherical case. Submitted.
5. C. L. Frenzen and R. Wong. A uniform asymptotic expansion of the Jacobi polynomials with error bounds,Can. J. Math.,37 (1985), 979?1007.