1. H. Grad, “Theory of Rarefied Gases,” inRarefied Gas Dynamics, edited by F. Devienne (Pergamon Press Inc., London, England, 1960).
2. This concept of “time scales” has recently been employed to derive the hydrodynamic equations from the Boltzmann equation. See J. McCune, T. F. Morse, and G. Sandri, “On the Relaxation of Gases Toward Continuum Flow,” Proceedings of the Third International Symposium on Rarefied Gases,” Paris, 1962, (to be published).
3. Kinetic Modeling of Gas Mixtures
4. I. Kolodner, “Moment Description of Gas Mixtures, I,” NYU-7980, Courant Institute of Mathematical Sciences, New York University (1957).
5. Shock-wave structure in binary mixtures of chemically inert perfect gases