Tiesinga, E.
, Mohr, P.
, Newell, D.
and Taylor, B.
(2021),
CODATA Recommended Values of the Fundamental Physical Constants: 2018, Reviews of Modern Physics, [online], https://doi.org/10.1103/RevModPhys.93.025010, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931443
(Accessed December 4, 2024)