1. G. I. Taylor,Aeronaut. Res. Council Repts and Memoranda 1381, 1930; see also inThe Scientific Papers of G.I. Taylor, (G. K. Batchelor, ed.), Vol. III, Cambridge Univ. Press London and New York 128?141.
2. H. Grad, Reducible Problems in Magneto-Fluid Dynamic Steady Flows,Reviews of Modern Physics, 32 (1960) 830?847.
3. S. Tomotika and K. Tamada, Studies of Two-Dimensional Transonic Flows of a Compressible Fluid, Part I,Quart of Applied Math., VII, (1960) 381?397.
4. T. Meyer, über Zweidimensionale BewegungsvorgÄnge in einen Gas, das mit überschallgeschwindigkeit strömt, PH.D. dissertation, Göttingen, 1908. See alsoFoundation of Aerodynamics of High Speed (G. Carrier, ed.), Dover Publications, New York, (1951) 50?89.
5. M. Sichel, Two Dimensional Shock Structure in Transonic and Hypersonic Flow,Advances in Applied Mech., Academic Press Inc., New York, 11 (1971) 131?207.