1. Untersuchungan an Verdichtungsstossen und Grenzschichten in schnell beweglen Gasen, Mitteilungen aus dem Institut fur Aerodynamik;Ackeret,1947
2. The Interaction Between Boundary Layer and Shock Waves in Transonic Flow;Liepmann;Journal of the Aeronautical Sciences,1946
3. Remarks on the Interaction Between Shock Wave and Boundary Layer in Transonic and Supersonic Flow;Lees,1947
4. Viscous Effects in Compressible Flow;Lagerstrom,1948
5. The Propagation of Steady Disturbances in a Supersonic Stream Bounded on One Side by a Parallel Subsonic Stream;Howarth;Proc. Cambridge Philosophical Society,1948