Carlos D. Paternina-Arboleda Jairo R. Montoya-Torres Milton J. Acero-Dominguez Maria C. Herrera-Hernandez Scheduling jobs on a <i>k</i> -stage flexible flow-shop. 29-40 2008 164 Annals OR 1 http://dx.doi.org/10.1007/s10479-007-0257-2 db/journals/anor/anor164.html#Paternina-ArboledaMAH08