PANDEY, D.; KUMAR, S. Fuzzy optimization of primal-dual pair using piecewise linear membership functions. Yugoslav Journal of Operations Research, [S. l.], v. 22, n. 1, p. 97–106, 2012. DOI: 10.2298/YJOR090519008P. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/333. Acesso em: 26 aug. 2025.