MOUSAVI, Seyed Morteza; GERAMI, Javad; MOZAFFARI, Mohammad Reza; MOHAMMADALIPOUR AHARI, Roya; FEYLIZADEH, Mohammad Reza. A Robust Directional Distance Function for Fixed-Sum Undesirable Outputs: A Petrochemical Industry Study. Annals of Optimization With Applications, [S. l.], v. 1, n. 4, p. 241–268, 2025. DOI: 10.48314/anowa.v1i4.61. Disponível em: https://www.anowa.reapress.com/journal/article/view/61.. Acesso em: 18 may. 2026.