GUPTA, S. P.; KHANAL, D. P.; PYAKUREL, U.; DHAMALA, T. N. Approximate Algorithms for Continuous-Time Quickest Multi-Commodity Contraflow Problem. The Nepali Mathematical Sciences Report, [S. l.], v. 37, n. 1-2, p. 30–46, 2020. DOI: 10.3126/nmsr.v37i1-2.34068. Disponível em: https://www.nepjol.info/index.php/nmsr/article/view/34068. Acesso em: 24 oct. 2021.