Coursey, J.
and Dragoset, R.
(1999),
Atomic Weights and Isotopic Compositions (version 1.0), http://physics.nist.gov/Comp, [online], http://physics.nist.gov/Comp
(Accessed December 5, 2023)
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Atomic Weights and Isotopic Compositions (version 1.0)
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http://physics.nist.gov/Comp
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Created January 1, 1999, Updated February 17, 2017