1. Smilg, B., The Prevention of Aileron Oscillations at Transonic Airspeeds, Air Force Technical Report 5530,December, 1946.
2. Cheilik, H., and Frissel, H., Theoretical Criteria for Single Degree of Freedom Flutter at Supersonic Speeds, Cornell Aeronautical Laboratory Report CAL-7A, May, 1947.
3. Smilg, B., and Wasserman, L. S., Application of Three-Dimensional Flutter Theory to Aircraft Structures, Air Force Technical Report 4798,July, 1942.