JOSHI, Bhuwan Chandra.
 Higher order duality in multiobjective fractional programming problem with generalized convexity.
<strong>Yugoslav Journal of Operations Research</strong>, [S.l.], v. 27, n. 2, p. 249–264, june 2017.
ISSN 2334-6043.
Available at: &lt;<a href="https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/149" target="_new">https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/149</a>&gt;. Date accessed: 09 mar. 2025.