1. Role of Shocks in the "Sub-Transonic" Flutter Phenomenon
2. Lessing,H.C.,Troutman, J. L., and Menees, G. P."Experimental Determination on aRectangular WingOscillatinginthe First BendingModefor Mach Numbers from0.24 to 1.30,"NASATND-33, December 1960.
3. Isogai, K. "Numerical Simulation of Transonic Flutter of a High-Aspect-Ratio Transport Wing", National Aerospace Laboratory, Japan, Report TR-776T, August,1983.