1. S. Chapman and T. Cowling,The Mathematical Theory of Non-uniform Gases, Cambridge Univ. Press, Cambridge (1939).
2. N. N. Bogoliubov,Selected Works in Three Volumes [in Russian], Vol. 2, Naukova Dumka, Kiev (1970).
3. J. H. Ferziger and H. J. Kaper,Mathematical Theory of Transport Processes in Gases, North-Holland, Amsterdam (1972).
4. A. C. Levi, F. R. McCourt, and J. Hajdu,Physica,42, 347 (1969).
5. G. G. Scott, H. W. Sturner, and R. M. Williamson,Phys. Rev. A,158, 117 (1967).