Rubén Ruiz Concepción Maroto Javier Alcaraz Solving the flowshop scheduling problem with sequence dependent setup times using advanced metaheuristics. 34-54 2005 165 European Journal of Operational Research 1 http://dx.doi.org/10.1016/j.ejor.2004.01.022 db/journals/eor/eor165.html#RuizMA05