International Journal of Production Economics
International Journal of Production Economics > 2011 > 129 > 1 > 79-85
International Journal of Production Economics > 2011 > 134 > 1 > 138-150
International Journal of Production Economics > 2011 > 129 > 1 > 79-85
International Journal of Production Economics > 2011 > 134 > 1 > 138-150