1. G. E. Uhlenbeck and L. Gropper, Phys. Rev. 41, 79 (1932). PHRVAO0031-899X
2. See also K. Huang, Statistical Mechanics (John Wiley & Sons, Inc., New York, 1963), pp. 216ff.
3. T. Dunn and A. A. Broyles, Phys. Rev. 157, 156 (1967).PHRVAO0031-899X
4. M. Born and H. S. Green, Proc. Roy. Soc. (London) A188, 10 (1947).PRLAAZ1364-5021
5. See, e.g., J. O. Hirschfelder, C. F. Curtiss, and R. B. Bird, Molecular Theory of Gases and Liquids (John Wiley & Sons, Inc., New York, 1954), Chap. 6.