1. A.J. Head, R. Sabbah, in: K.N. Marsh (Ed.), IUPAC Recommended Reference Materials for the Realization of Physicochemical Properties, Chap. 9, Blackwell, Oxford, 1987.
2. The International Temperature Scale of 1990 (ITS-90)
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4. A.J. Head, R. Sabbah, in: K.N. Marsh (Ed.), IUPAC Recommended Reference Materials for the Realization of Physicochemical Properties, Chap. 9, Blackwell, Oxford, 1987.