TY - CONF AU - Heavner, Thomas AU - Parker, Tom AU - Shirley, Jon AU - Jefferts, Steven C2 - Proc. 2008 Symposium on Frequency Standards and Metrology, Pacific Grove, CA, US DA - 2008-10-05 00:10:00 LA - en PB - Proc. 2008 Symposium on Frequency Standards and Metrology, Pacific Grove, CA, US PY - 2008 TI - NIST F1 and F2 UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901130 ER -