1. The Similarity Law of Transonic Flow
2. The Flow over a Wedge Profile at Mach Number 1
3. Drag of a Finite Wedge at High Subsonic Speeds
4. Spreiter, J. R. "On the Application of Transonic Similarity Rules to Wings of Finite Span," NACA Report 1153, 1953.
5. Theodorsen, T, and Garrick, I, "Mechanism of Flutter - A Theoretical and Experimental Investigation of the FlutterProblem,"NACA Report No. 685, 1940.