International Journal of Production Economics
International Journal of Production Economics > 2011 > 129 > 2 > 251-261
International Journal of Production Economics > 2011 > 130 > 1 > 33-42
International Journal of Production Economics > 2011 > 133 > 2 > 662-676
International Journal of Production Economics > 2011 > 133 > 2 > 518-529