DAS, Koushik.
 Sufficiency and Duality of Set-Valued Fractional Programming Problems via Second-Order Contingent Epiderivative.
<strong>Yugoslav Journal of Operations Research</strong>, [S.l.], v. 32, n. 2, p. 167-188, june 2022.
ISSN 2334-6043.
Available at: &lt;<a href="https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/950" target="_new">https://yujor.fon.bg.ac.rs/index.php/yujor/article/view/950</a>&gt;. Date accessed: 05 dec. 2024.