Sandkasse/jcs

[math]THR = \frac{IRF_{\text{i}}}{\sum_{H_{\text{j}}}\left( D_{\text{j}} + E_{\text{ij}}\right) \sum_{A_{\text{k}}}C_{\text{jk}} \times F_{\text{ik}}}[/math]

[math]{IRF_{\text{i}}}[/math]

[math]{\sum_{H_{\text{j}}}\left( D_{\text{j}} + E_{\text{ij}}\right) \sum_{A_{\text{k}}}C_{\text{jk}} \times F_{\text{ik}}}[/math]