1. Al-Salam, W., Carlitz, L.: Some q-orthogonal polynomials. Math. Nach. 30, 47–61 (1965)
2. Andrews, G.E.: Summations and transformations for basic Appell series. J. London Math. Soc. (2) 4, 618–622 (1972)
3. Andrews, G.E.: The Theory of Partitions. Encyl. of Math. and Its Appl., vol. 2, Addison-Wesley, Reading, (1976) (reissued: Cambridge University Press, Cambridge (1985, 1998))
4. Gasper, G., Rahman, M.: Basic Hypergeometric Series. Encyl. of Math. and Its Appl., vol. 35, Cambridge University Press, Cambridge (1990)