Terms (3) sourced from: https://doi.org/10.1088/1681-7575/aa950a
"The CODATA 2017 values of h, e, k, and NA for the revision of the SI", D.B. Newell, F. Cabiati, J. Fischer, K. Fujii, S.G. Karshenboim, H.S. Margolis, E. de Mirandés, P.J. Mohr, F. Nez, K. Pachucki, T.J. Quinn, B.N. Taylor, M. Wang, B.M. Wood and Z. Zhang, Metrologia 2017, 55(1), L13