 \int_{\frac{0}{0}e^{-i\vartheta}}^{\frac{0}{0}e^{i\vartheta}} t^k  \frac{{{\left({0q e^{i\vartheta} t,0q e^{-i\vartheta} t, At, q/At}; q\right)_{\infty}}}}{{{\left({-0bct/\lambda, B t, q/B t}; q\right)_{\infty}}}} 