1. Lect. Series Comp. Fluid Dyn.;A. Brandt,1984
2. VKI Lecture Series;A. Eberle,1987
3. Eberle, A., Schmatz, M. A., Shaffer, O.: High order solutions of the Euler equations by characteristic flux averaging. MBB/LKE122/S/PUB/273 MBB 1986.
4. Lect. Series Comp. Fluid Dyn;P. W. Hemker,1988
5. Hemker, P. W., Spekreijse, S. P.: Multigrid solution of the steady Euler equations. In: Advances in multi-grid methods. Notes Num. Fluid Mech. (Trottenberg, U., Hackbusch, W., eds.), vol. 11, pp. 33?45. Vieweg 1985.