MITITELU, Ştefan; STANCU-MINASIAN, I.M. Efficiency and duality for multiobjective fractional variational problems with (ρ,b) - quasiinvexity. Yugoslav Journal of Operations Research, [S. l.], v. 19, n. 1, p. 85–99, 2009. DOI: 10.2298/YJOR0901085M. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/256. Acesso em: 30 nov. 2025.