SACHDEV, Geeta; VERMA, Khushboo; GULATI, T. R.. Second-order symmetric duality in multiobjective variational problems. Yugoslav Journal of Operations Research, [S.l.], v. 29, n. 3, p. 295-308, july 2019. ISSN 2334-6043. Available at: <http://www.yujor.fon.bg.ac.rs/index.php/yujor/article/view/653>. Date accessed: 04 may 2024.