V. Chagas and M. Iori.
" Arc-flow formulation for capacitated clustering problems", in <em>Proceedings of the 5th Theory of Computation Meeting</em>, Cuiabá, 2020, pp. 97-100, doi: <a href="https://doi.org/10.5753/etc.2020.11099">https://doi.org/10.5753/etc.2020.11099</a>.