1. Viscosity effects in sound waves of finite amplitude;Lighthill,1956
2. On shock structure in a solid;Bland;J. Inst. Math. Appl.,1965
3. Nonlinear acoustics;Bjørnø,1976
4. Propagation of finite disturbances in a relaxing medium;Polyakova;Soviet Phys. Acoust.,1962
5. Nonlinear wave propagation in a relaxing gas;Ockenden;J. Fluid Mechs.,1969