リチャード・アスキー
Richard Askey, Orthogonal polynomials and special functions, SIAM, 1975.
Askey, R., & Ismail, M. (1984). Recurrence relations, continued fractions and orthogonal polynomials. American Mathematical Society.
Askey, R., & Wilson, J. A. (1985). Some basic hypergeometric orthogonal polynomials that generalize Jacobi polynomials. American Mathematical Society.
George E. Andrews, Richard Askey, and Ranjan Roy, Special functions, Encyclopedia of Mathematics and Its Applications, en:Cambridge University Press, 1999.