TY - CONF AU - MacCrehan, William C2 - Proc. of the 15th International Conference on Ion Mobility Spectrometry , -1 DA - 2006-11-01 LA - en M1 - in press PB - Proc. of the 15th International Conference on Ion Mobility Spectrometry , -1 PY - 2006 TI - Development of a NIST Trace Particulate Explosives Reference Material to Evaluate IMS Detectors ER -