\[\left|R_{K}(z)\right|\leq\frac{(1+\zeta\left(K\right))\Gamma\left(K\right)}{2(%
2\pi)^{K+1}{\left|z\right|}^{K}}\*\left(1+\min(\sec\left(\operatorname{ph}z%
\right),2K^{\frac{1}{2}})\right),\]