\right) }\ \ _{r}\psi _{s}\!\left( \!\!% \begin{array}{c} a_{0},\dots,a_{i},\ c/q,dq \\[0.0cm] b_{0},\dots,b_{k},\ g,h% \end{array}% \!\!;q,\,t\!\right)   \notag \\ &\qquad +\ _{r}\psi _{s}\!\left( \!\!% \begin{array}{c} a_{0},\dots,a_{i},\ c/q,d