TY - JOUR AU - Donald Sullivan AU - James Bergquist AU - Robert Drullinger AU - Wayne Itano AU - Steven Jefferts AU - D Lee AU - D Meekhof AU - Thomas Parker AU - F Walls AU - David Wineland C2 - Journal of Research of the National Institute of Standards and Technology DA - 2001-01-01 LA - en M1 - 106 PB - Journal of Research of the National Institute of Standards and Technology PY - 2001 TI - Primary Atomic Frequency Standards at NIST ER -