TY - GEN AU - Sylvere Krima AU - Raphael Barbau AU - Xenia Fiorentini AU - Rachuri Sudarsan AU - Ram D Sriram C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2009-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.7561 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2009 TI - OntoSTEP ::OWL-DL ontology for STEP ER -