1. Internal friction in solids;Kimball;Transactions of the American Society of Mechanical Engineers,1926
2. Damping capacity of materials;Von Heydekampf,1931
3. Elastic hysteresis in crankshaft steels;Dorey,1932
4. The practical importance of the damping capacity of metals, especially steels;Föppl;Journal of the Iron and Steel Institute,1936
5. The damping capacity of steel and its measurement;Contractor;Journal of the Iron and Steel institute,1940