1. International Formulation Committee of the 6th International Conference on the Properties of Steam, The 1967 IFC Formulation for Industrial Use, 1967, Verein Deutscher Ingenieure, Düsseldorf.
2. International Association for the Properties of Water and Steam, Revised Release on the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam, 2007, IAPWS Secretariat, http://www.iapws.org.
3. International Association for the Properties of Water and Steam, Revised Supplementary Release on Backward Equations for Pressure as a Function of Enthalpy and Entropy p(h, s) for Regions 1 and 2 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam, 2014, IAPWS Secretariat, http://www.iapws.org.
4. International Association for the Properties of Water and Steam, Revised Supplementary Release on Backward Equations for the Functions T(p, h), v(p, h) and T(p, s), v(p, s) for Region 3 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam, 2014, IAPWS Secretariat, http://www.iapws.org.
5. International Association for the Properties of Water and Steam, Revised Supplementary Release on Backward Equations p(h, s) for Region 3, Equations as a Function of h and s for the Region Boundaries, and an Equation Tsat(h, s) for Region 4 of the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam, 2014, IAPWS Secretariat, http://www.iapws.org.