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NIST Temperature Scale Database (SRD 60), Version 3.0
Fixed Points Associated with a Selected Reference:
Reference:
A. Szmyrka-Grzebyk, A. Kowal, L. Lipiński, H. Manuszkiewicz, P. P. M. Steur, F. Pavese; The β - γ transition of oxygen as a secondary fixed point of the ITS-90. AIP Conf. Proc. 11 September 2013; 1552 (1): 204–208. (DOI:) (2013)