Mohr, P.
, Tiesinga, E.
, Newell, D.
and Taylor, B.
(2024),
Codata Internationally Reconmmended 2022 Values of the Fundamental Physical Constants, Codata Internationally Reconmmended 2022 Values of the Fundamental Physical Constants, [online], https://physics.nist.gov/constants
(Accessed May 20, 2024)