1. Lick, W.J.: The propagation of small disturbances in a radiating gas. J. Fluid Mech. 18, 274 (1965)
2. Walter, G.K., Charles, H., Vinceti, Jr.: Introduction to physical gas dynamics. Wiley, New York (1965)
3. Whitham, G.B.: Linear and nonlinear wave. Wiley, New York (1974)
4. Thomas, T.Y.: The growth and decay of sonic discontinuities in ideal gases. J. Math. Mech. 6, 455–469 (1957)
5. Coleman, B.D., Gurtin, M.E.: Growth and decay of discontinuities in fluids with internal state variables. Phys. Fluids 10, 1454–1458 (1967)