PACHAR, Nomita; GUPTA, Anshu; JHA, P.C. Bi-level programming DEA approach for efficiency evaluation: A case study of Indian electronics retail stores. Yugoslav Journal of Operations Research, [S. l.], v. 30, n. 4, p. 461–481, 2020. DOI: 10.2298/YJOR191124026P. Disponível em: https://yujor.erc.fon.bg.ac.rs/index.php/yujor/article/view/640. Acesso em: 2 jan. 2026.