J. Fischer, M. de Podesta, K. D. Hill, M. Moldover, L. Pitre, R. Rusby, P. Steur, O. Tamura, R. White, L. Wolber, Present estimates of the differences between Thermodynamic temperatures and the ITS-90, Int. J. Thermophys. 32 (2011) 12-25. (DOI:) (2011)