1. Van Driest, E. R. (1951).The turbulent boundary layer in compressible fluids.J. Aero. Sci.18,145–160.
2. Hool, J. N. 1956 Measurements of skin friction using surface tubes.J. Aircraft Eng. 28,52–53.
3. Coles, D. E. 1962 The turbulent boundary layer in a compressible fluid.Rand. Corporation,Santa Monica, California, Rep. R-403-Pr.
4. Coles, D. E. & Hirst, E. A. 1969 Proceedings Computation of Turbulent Boundary Layers, 1968 AFOSR-IFP-Stanford Conference, vol. II.Thermosciences Division, Stanford University,California.
5. Alber, I. E. & Coats, D. E. 1969 Analytical Inwestigation of Equilibrium and Non-Equilibrium Compressible Turbulent Boundary Layers.A.I.A.A. Paper, 69–689.