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Standards of time and frequency at the outset of the 21st century

S A Diddams1, J C Bergquist, S R Jefferts

  • 1Time & Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, CO 80305, USA. sdiddams@boulder.nist.gov

Science (New York, N.Y.)
|November 20, 2004
PubMed

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