International Journal of Production Economics
International Journal of Production Economics > 2011 > 134 > 1 > 255-261
International Journal of Production Economics > 2011 > 134 > 2 > 289-299
International Journal of Production Economics > 2011 > 134 > 1 > 255-261
International Journal of Production Economics > 2011 > 134 > 2 > 289-299