International Journal of Production Economics
International Journal of Production Economics > 2004 > 88 > 3 > 257-267
International Journal of Production Economics > 2004 > 91 > 2 > 121-134
International Journal of Production Economics > 2004 > 88 > 3 > 257-267
International Journal of Production Economics > 2004 > 91 > 2 > 121-134