PANKAJ,; JOSHI, Bhuwan Chandra. Higher order duality in multiobjective fractional programming problem with generalized convexity. Yugoslav Journal of Operations Research, [S. l.], v. 27, n. 2, p. 249–264, 2017. DOI: 10.2298/YJOR170121009P. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/507. Acesso em: 26 aug. 2025.