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Journal of Research of the National Institute of Standards and Technology|August 9, 2016
Primary Atomic Frequency Standards at NISTD B Sullivan, J C Bergquist, J J Bollinger, et al.Physical Review Letters|August 7, 2007
Observation of the 1S0-->3P0 clock transition in 27Al+T Rosenband, P O Schmidt, D B Hume, et al.Physical Review Letters|May 7, 2003
Testing the stability of fundamental constants with the 199Hg+ single-ion optical clockS Bize, S A Diddams, U Tanaka, et al.Physical Review Letters|August 16, 2006
Single-atom optical clock with high accuracyW H Oskay, S A Diddams, E A Donley, et al.Physical Review Letters|March 16, 2007
Precision atomic spectroscopy for improved limits on variation of the fine structure constant and local position invarianceT M Fortier, N Ashby, J C Bergquist, et al.Science (New York, N.Y.)|March 8, 2008
Frequency ratio of Al+ and Hg+ single-ion optical clocks; metrology at the 17th decimal placeT Rosenband, D B Hume, P O Schmidt, et al.Pageof 24