1. Solutions in the large for nonlinear hyperbolic systems of equations;Glimm, James;Comm. Pure Appl. Math.,1965
2. Hyperbolic systems of conservation laws. II;Lax, P. D.;Comm. Pure Appl. Math.,1957
3. 4. B. L. Roždestvenskiĭ, Construction of discontinuous solutions to systems of quasilinear equations, I, II, Ž. Vyčisl. Mat. i Mat. Fiz. 2 (1962), 1019-1043; 3 (1963), 79-98.
4. A class of initial value problems for systems of aerodynamic equations;Zhang Tong;Chinese Math.--Acta,1965