1. Bjork, R. L., “Status of the Theory of Hypervelocity Impact,” Symp. Structural Dynamics under High Impulse Loading, Dayton, Ohio (Sept. 17–18, 1962).
2. Mason, W. P., Physical Acoustics and the Properties of Solids, D. Van Nostrand Company, Inc., Princeton, N. J. (1958).
3. Graham, R. A., “Technique for Studying Piezoelectricity Under Transient High Stress Conditions,”The Rvw. Sci. Instr.,32 (12),1308–1313 (1961).
4. Karnes, C. H., “Strain-Rate Effects in Cold Worked High-Purity Aluminum”, dissertation, The University of Texas (Jan. 1964).
5. Cady, W. G., Piezoelectricity, McGraw-Hill Book Co., Inc., New York, 139 (1946).