\[R_{m,n}^{(2)}(z)=\begin{cases}O\left(e^{-|z|+z}z^{-m}\right),&0\leq%
\operatorname{ph}z\leq 2\pi,\\
O\left(z^{-m}\right),&-\frac{3}{2}\pi+\delta\leq\operatorname{ph}z\leq 0\text{%
 and }2\pi\leq\operatorname{ph}z\leq\frac{7}{2}\pi-\delta,\end{cases}\]