TY  - JOUR
AU  - Al-Salam, N.A.
AU  - Al-Salam, W. A.
TI  - Some Characterizations of the Ultraspherical Polynomials
JO  - Canadian mathematical bulletin
PY  - 1968
SP  - 457
EP  - 464
VL  - 11
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1968-054-1/
DO  - 10.4153/CMB-1968-054-1
ID  - 10_4153_CMB_1968_054_1
ER  -