ALPAY, O.; AKTÜRK HAYAT, E. Copula approach to select input/output variables for DEA. An International Journal of Optimization and Control: Theories & Applications (IJOCTA), [S. l.], v. 7, n. 1, p. 28–34, 2016. DOI: 10.11121/ijocta.01.2017.00334. Disponível em: http://ijocta.org/index.php/files/article/view/334. Acesso em: 3 apr. 2025.