International Journal of Production Economics
International Journal of Production Economics > 2011 > 131 > 2 > 650-662
International Journal of Production Economics > 2011 > 132 > 2 > 303-314
International Journal of Production Economics > 2011 > 131 > 2 > 650-662
International Journal of Production Economics > 2011 > 132 > 2 > 303-314