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A_i = A_i^* + \epsilon \delta A_i \nonumber  \end{equation}  Then we put it into \ref{7} \ref{denklem7}  we get: \begin{equation}  A_i^* + \epsilon \delta A_i + \epsilon \sum_{j} T_{ij} ( A_j^* + \epsilon \delta A_j) - \frac{\alpha^{PA} \alpha^{AP}}{\lambda_i^q} \sum_{j<=1} (A_j^* + \epsilon \delta A_j) - i K_p \frac{\alpha^{PA}}{\lambda_i^q} = K_a \ nonumber \nonumber  \end{equation}     
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