TY - RPRT TI - STEP-OAGIS harmonization joint working group : PDM subgroup interim report AU - Fiorentini, Xenia AU - Rachuri, Sudarsan PY - 2009 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 7618 DO - 10.6028/NIST.IR.7618 ER -