CVETKOVIĆ, Dragoš M.; ČANGALOVIĆ, Mirjana M. Finding minimal branchings with a given number of arcs. Yugoslav Journal of Operations Research, [S. l.], v. 12, n. 1, p. 1–10, 2002. DOI: 10.2298/YJOR0201001C. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/62. Acesso em: 18 nov. 2025.