1. Baratella, P.: Bounds for the error term in Hilb fromula for Jacobi polynomials. Atti Accad. Sci. Torino, Cl. Sci. Fis. Mat. Nat. 120(5–6), 207–223 (1986/1987)
2. Baratella, P., Gatteschi, L.: The bounds for the error term of an asymptotic approximation of Jacobi polynomials. Orthogonal Polynomials and their Applications (Segovia, 1986). Lecture Notes in Math., vol. 1329, 203–221. Springer, Berlin (1988)
3. Baratella, P., Gatteschi, L.: Remarks on asymptotics for Jacobi polynomials. Calcolo 28(1–2), 129–137 (1991/1992)
4. Chow, Y., Gatteschi, L., Wong, R.: A Bernstein-type inequality for the Jacobi polynomial. Proc. Amer. Math. Soc. 121(3), 703–709 (1994)
5. Dunster, T.M.: Uniform asymptotic expansions for Whittaker’s confluent hypergeometric functions. SIAM J. Math. Anal. 20(3), 744–760 (1989)