International Journal of Production Economics
International Journal of Production Economics > 1999 > 59 > 1-3 > 271-279
International Journal of Production Economics > 2001 > 71 > 1-3 > 277-285
International Journal of Production Economics > 1999 > 59 > 1-3 > 271-279
International Journal of Production Economics > 2001 > 71 > 1-3 > 277-285