International Journal of Production Economics
International Journal of Production Economics > 2007 > 106 > 2 > 550-562
International Journal of Production Economics > 2007 > 108 > 1-2 > 84-99
International Journal of Production Economics > 2007 > 106 > 2 > 550-562
International Journal of Production Economics > 2007 > 108 > 1-2 > 84-99