1. Baker, W. E. and Allen, F. J., “The Damping of Transverse Vibrations of Thin Beams in Air”, BRL Rpt. (1033), Aberdeen Proving Ground (October 1957).
2. Lindholm, U. S., Kana, D. D., Chu, W. andAbramson, H. N., “The Elastic Vibration characteristics of Cantilever Plates in Water”Jnl. Ship Res.,9, (1),123 (June1965).
3. Stephens, D. G. and Scavullo, M. A., “Investigation of Air Damping of Circular and Rectangular Plates, a Cylinder, and a Sphrere,” NASA TN D1865 (April 1965).