1. as referenced by and “Theory of Elasticity,” 3rd Ed., p. 409ff, McGraw-Hill, New York, (1970).
2. The Hertz problem for a rigid spherical indenter and a viscoelastic half-space
3. a “Impact Studies of Polymeric Matrices,” Technical Information Series, Report 73CRD177, General Electric Co., Schenectady, New York, 1973.
4. a “Impact Studies of Polymeric Matrices,” Technical Information Series, Report 74CRD213, 1974.
5. a “Impact Studies of Polymeric Matrices,” Technical Information Series, Report 75CRD198, 1975.