[1] Univ Minho, Algoritmi Res Ctr, Dept Prod & Syst, P-4804533 Guimaraes, Portugal
[2] Univ Fed Mato Grosso do Sul, Dept Accounting, BR-79750000 Nova Andradina, MS, Brazil
[3] Pontificia Univ Catolica Valparaiso, Escuela Ingn Mecan, Valparaiso 2430120, Chile