1. R. Courant and K. Friedrichs, Supersonic Flow and Shock Waves [Russian translation], IL, 1950.
2. M. D. Ustinov, ?Transformation and some solutions of equations of one-dimensional adiabatic motion of an ideal gas,? Mekhanika zhidkosti i gaza [Fluid Dynamics], no. 3, 1966.
3. C. W. Jones, ?On a gas flow in one dimension following a normal shock of variable strength?, Proc. Roy. Soc., no. 1145, Series A, vol. 221, 1954.
4. H. Cabannes, ?Sur l'intégration d'une equation de Monge-Am-père?, Compt. Rend. Acad. Sci., vol. 241, no. 19, 1955.
5. V. P. Korobeynikov, ?Exact solution of the nonlinear problem of an explosion in a gas with variable initial density?, DAN SSSR, vol. 117, no. 6, 1957.