1. Difference schemes for hyperbolic equations with high order of accuracy
2. R. D. Richtmyer and K. W. Morton,Difference Methods for Initial Value Problems(Interscience, New York, 1967), Chap. 13.
3. Determination of Internal Gas Flows by a Transient Numerical Technique
4. Numerical methods in multidimensional shocked flows
5. T. E. Laskaris, Ph.D. dissertation, Rensselaer Polytechnic Institute (1974).