1. S. C. Mullins, B. S. Kirk, and W. T. Ziegler, “The Thermodynamic Properties of Oxygen from 20° to 100°K,” Tech. Rept. No. 2, Project No. A-593, Engineering Experiment Station, Georgia Institute of Technology. NBS Contract CST-7339.
2. S. C. Mullins, W. T. Ziegler, and B. S. Kirk, “The Thermodynamic Properties of Parahydrogen from 1° to 20°K,” Tech. Rept. No. 1, Project No. A-593, Engineering Experiment Station, Georgia Institute of Technology. NBS Contract CST-7339.