%0 Journal Article
%A Al-Salam, N.A.
%A Al-Salam, W. A.
%T Some Characterizations of the Ultraspherical Polynomials
%J Canadian mathematical bulletin
%D 1968
%P 457-464
%V 11
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-054-1/
%R 10.4153/CMB-1968-054-1
%F 10_4153_CMB_1968_054_1