GIANNOPOULOS, George A. Issues of the European transport policy and current state of EU funded transport research. Yugoslav Journal of Operations Research, [S. l.], v. 12, n. 1, p. 109–120, 2002. DOI: 10.2298/YJOR0201109G. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/69. Acesso em: 9 dec. 2025.