SINGH, D.; DAR, B. A.; GOYAL, A. KKT OPTIMALITY CONDITIONS FOR INTERVAL VALUED OPTIMIZATION PROBLEMS. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), [S. l.], v. 5, n. 2, p. 91–103, 2014. Disponível em: https://ph03.tci-thaijo.org/index.php/jnao/article/view/2757. Acesso em: 2 sep. 2026.