International Journal of Production Economics
International Journal of Production Economics > 2011 > 131 > 2 > 528-534
International Journal of Production Economics > 2011 > 134 > 1 > 151-158
International Journal of Production Economics > 2011 > 131 > 2 > 528-534
International Journal of Production Economics > 2011 > 134 > 1 > 151-158