International Journal of Production Economics
International Journal of Production Economics > 2009 > 117 > 1 > 197-211
International Journal of Production Economics > 2009 > 117 > 1 > 136-141
International Journal of Production Economics > 2009 > 117 > 2 > 389-401
International Journal of Production Economics > 2009 > 120 > 2 > 411-417