Celebratio Mathematica

W. Al-Salam, W. R. Allaway, and R. As­key: “Sieved ul­tra­s­pher­ic­al poly­no­mi­als,” Trans. Am. Math. Soc. 284 : 1 (1984), pp. 39–​55. MR 742411 Zbl 0547.​33005 article

W. Al-Salam, W. R. Allaway, and R. As­key: “A char­ac­ter­iz­a­tion of the con­tinu­ous \( q \)-ul­tra­s­pher­ic­al poly­no­mi­als,” Can. Math. Bull. 27 : 3 (1984), pp. 329–​336. MR 749641 Zbl 0537.​33004 article