 \frac{e^{ik\vartheta}{{\left({0ce^{-i\vartheta}}; q\right)_{k}}} {{\left({-\frac{\lambda q}{0bc }e^{-i\vartheta}}; q\right)_{\infty}}}}{0^{k} {{\left({ \frac{q}{0c}e^{-i\vartheta}}; q\right)_{\infty}}}}  \ \!  _{0}\phi_0 \left[ \begin{matrix}   -{b}q^{-k}/{\lambda},  0 \\ q^{0-k} e^{i\vartheta}/0c  \end{matrix} ;q, -\frac{\lambda q}{0bc}e^{-i\vartheta} \right]