TY - RPRT TI - Theory of Discrete Event Logistics Systems (DELS) specification AU - Sprock, Timothy AU - Thiers, George AU - McGinnis, Leon F AU - Bock, Conrad PY - 2020 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 8262 DO - 10.6028/NIST.IR.8262 ER -