TY - CONF AU - Robert Drullinger AU - John Lowe AU - D Glaze AU - Jon Shirley C2 - 1993 IEEE Frequency Control Symposium , Salt Lake City, UT DA - 1993-01-01 LA - en PB - 1993 IEEE Frequency Control Symposium , Salt Lake City, UT PY - 1993 TI - NIST-7, The New U.S. Primary Frequency Standard ER -