TeX source:

\min \left\{\sum_{k} \sum_{r} \sum_{(i, j) \in A} \mathrm{ds}_{i, j} X_{k, r, i, j} T C_{k}+\sum_{k} \sum_{r} \sum_{p} \sum_{(i, j) \in A} X T_{k, r, i, j, p} \mathrm{ds}_{i, j} L C_{k, p}\right\}