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2. Device for damping vibrations of bodies;Frahm,1909
3. The theory of the dynamic vibration absorber;Ormondroyd;Transactions of the American Society of Mechanical Engineers,1928
4. Synthesis of a non-linear dynamic vibration absorber;Roberson;Journal of the Franklin Institute,1952
5. Analysis of a non-linear dynamic vibration absorber;Pipes;Journal of Applied Mechanics,1953