\frac{0}{0\pi k_{0}^{0}\epsilon }\nabla \times \nabla \times  \nonumber \\ &&\int_{S_{j}}d^{0}r^{\prime }\left( {\bf E}_{in}({\bf r}^{\prime })\frac{ \partial G^{(in)}({\bf r}^{<},{\bf r}^{\prime })}{\partial {\bf n}}-G^{(in)}( {\bf r}^{