\[\rselection{Q\left(a,z\right)\\
P\left(a,z\right)}\sim\frac{z^{a-\frac{1}{2}}e^{-z}}{\Gamma\left(a\right)}{%
\left(d(\pm\chi)\sum_{k=0}^{\infty}\frac{A_{k}(\chi)}{z^{k/2}}\mp\sum_{k=1}^{%
\infty}\frac{B_{k}(\chi)}{z^{k/2}}\right)},\]