Diego Dominici,
"Asymptotic analysis of the Askey-scheme. I. From Krawtchouk to Charlier"
, in Cent. Eur. J. Math., Vol. 5, Nummer 2, Seite(n) 280--304, 2007, ISSN: 1895-1074
Original Titel:
Asymptotic analysis of the Askey-scheme. I. From Krawtchouk to Charlier