SIFALERAS, Angelo. Minimum cost network flows: Problems, algorithms, and software. Yugoslav Journal of Operations Research, [S. l.], v. 23, n. 1, p. 3–17, 2013. DOI: 10.2298/YJOR121120001S. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/347. Acesso em: 26 aug. 2025.