1. J.B. Barlow, Jr., Rae, H. William and A. Pope, Low-speed wind tunnel testing (Third edition John Wiley and Sons INC, 1999), p. 713.
2. R.G. Pankhurst and D.W. Holder, Wind-tunnel technique (Sir Isaac Pitman and sons L.T.D. London, 1952), p. 702.
3. Laminar-flow instrumentation for wind-tunnel and flight experiments
4. L. Cattafesta, C. Bahr and J. Mathew, “Fundamentals of wind-tunnel design”, in Encyclopedia of Aerospace Engineering (John Wiley & Sons, 2010)
5. F.M. White, Fluid mechanics (Boston McGraw-Hill, 2003), p. 885.