TY - JOUR AU - Jon Shirley AU - W Lee AU - Robert Drullinger C2 - Metrologia DA - 2002-01-01 LA - en M1 - 38 PB - Metrologia PY - 2002 TI - Accuracy Evaluation of the Primary Frequency Standard NIST-7 UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=105082 ER -