1. H. Grad, “Singular and nonuniform limits of solutions of the Boltzmann equation,” in Transport Theory, SIAM-AMS Proceedings, Vol. 1, 1969.
2. P. N. Hu, “Hypersonic Cone Drag in Near-Free Molecular Flow,” in these proceedings.
3. Plasmas
4. Structure of the Boltzmann Collision Operator
5. F. B. Hanson, “Structure of the Distribution Function for Molecular Interactions of Infinite Range I,” in Sixth International Symposium on Rarefied Gas Dynamics, Vol. 1, 1969.