POPOVIĆ, Maja M.; JOVIĆ, Jadranka J. Concept of expert system for modal split in transportation planning. Yugoslav Journal of Operations Research, [S. l.], v. 16, n. 1, p. 107–124, 2006. DOI: 10.2298/YJOR0601107P. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/183. Acesso em: 18 dec. 2025.