KABADI, S. N.; CHANDRASEKARAN, R.; NAIR, K. P.K. 2-Commodity Integer Network Synthesis Problem. Algorithmic Operations Research, [S. l.], v. 4, n. 2, p. Pages 117 – 132, 2009. Disponível em: https://journals.lib.unb.ca/index.php/AOR/article/view/12477. Acesso em: 20 apr. 2024.