1. Zeros of generalized Krawtchouk polynomials;Chihara;J. Approx. Theory,1990
2. Difference equations and discriminants for discrete orthogonal polynomials;Ismail;The Ramanujan J.,2005
3. Classical and Quantum Orthogonal Polynomials in One Variable;Ismail,2005
4. R. Koekoek, R.F. Swarttouw, The Askey-scheme of hypergeometric orthogonal polynomials and its q-analogue, Reports of the faculty of Technical Mathematics and Informatics No. 98-17, Delft, 1998, (math.CA/9602214at arXiv.org)
5. Discrete analogues of the Laguerre inequality;Krasikov;Anal. Appl.,2003