CVETKOVIĆ, Dragoš M.; HANSEN, Pierre; KOVAČEVIĆ-VUJČIĆ, Vera V. On some interconnections between combinatorial optimization and extremal graph theory. Yugoslav Journal of Operations Research, [S. l.], v. 14, n. 2, p. 147–154, 2004. DOI: 10.2298/YJOR0402147C. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/128. Acesso em: 26 aug. 2025.