1. R.E. Caflisch, in: J.L. Lebowitz, E.W. Montroll (Eds.), Nonequilibrium Phenomena I: the Boltzmann Equation, North-Holland, Amsterdam, 1983, Chap. 5.
2. C. Cercignani, The Boltzmann Equation and Its Applications, Springer, Berlin, 1988.
3. Asymptotic Theory of the Boltzmann Equation
4. H. Grad, in: S. Flugge (Ed.), Encyclopedia of Physics XIII, Springer, Berlin, 1958, pp. 205–294.
5. S. Chapman, T.G. Cowling, The Mathematical Theory of Non-Uniform Gases, Cambridge, 1961.