JAHANSHAHLOO, G.R; HOSSEINZADEH LOTFI, F.; MADDAHI, R.; JAFARI, Y. Efficiency and benchmarking in the presence of undesirable (bad) outputs: A DEA approach. International Journal of Applied Mathematical Research, [S. l.], v. 1, n. 2, p. 178–188, 2012. DOI: 10.14419/ijamr.v1i2.44. Disponível em: https://www.sciencepubco.com/index.php/ijamr/article/view/44.. Acesso em: 3 may. 2024.