1. Strowbridge, T. R.: The thermodynamic properties of nitrogen from 64 K to 300 K between 0.1 and 200 atm. NBS Tech. Note 129 (1962).
2. Dean, J. W.: A tabulation of the thermodynamic properties of normal hydrogen from low temperatures to 300 K and from 1 to 100 atm. NBS Tech. Note 120 (1961).
3. Roder, H. M., Weber, L. A., Goodwin, R. D.: Thermodynamic and related properties of parahydrogen. NBS Monograph 94 (1965).
4. Mann, D. B.: The thermodynamic properties of helium from 3 to 300 K and from 0.5 atm to 100 atm. NBS Tech. Note 154 (1962).
5. McCarty, R. D., Stewart, R. B.: Advances in Cryogenic Engineering 9, p. 161. New York: Plenum Press 1964.