TY - RPRT TI - Integrated supply chain simulation system (ISSS) - modeling requirements and design issues AU - Umeda, Shigeki AU - Jain, Sanjay PY - 2004 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 7180 DO - 10.6028/NIST.IR.7180 ER -