International Journal of Production Economics
International Journal of Production Economics > 2011 > 131 > 1 > 333-341
International Journal of Production Economics > 2011 > 133 > 1 > 86-94
International Journal of Production Economics > 2011 > 131 > 1 > 333-341
International Journal of Production Economics > 2011 > 133 > 1 > 86-94