1. H. Preston-Thomas, Metrologia 27, 3 (1990) (Errata-corrige 27, 107 (1990))
2. Technical Annex for the International Temperature Scale of 1990 (ITS-90), in Mise en Pratique for the definition of the kelvin 2014 (Bureau International des Poids et Mesures-BIPM, Sèvres, 2013). http://www.bipm.org/utils/en/pdf/MeP_K_Technical_Annex.pdf
3. F. Pavese, Metrologia 42, 194 (2005)
4. B. Fellmuth, L. Wolber, Y. Hermier, F. Pavese, P.P.M. Steur, I. Peroni, A. Szmyrka-Grzebyk, L. Lipinski, W.L. Tew, T. Nakano, H. Sakurai, O. Tamura, D. Head, K.D. Hill, A.G. Steele, Metrologia 42, 171 (2005)
5. F. Pavese, W.L. Tew, A.G. Steele, Archival and theoretical considerations for isotopic dependence in the $$e{\text{-H }}_2$$ e -H 2 fixed points, in Proceedings of TEMPMEKO 2001, 8th International Symposium on Temperature and Thermal Measurements in Industry and Science, ed. by B. Fellmuth, J. Seidel, G. Scholz (VDE Verlag, Berlin, 2002), pp. 429–434