1. On a method of reducing the rolling of ships at sea;Watts;Trans. Inst. Nav. Arch.,1883
2. H. Frahm, Device for Damping Vibrations of Bodies, US Patent US 989958 A, 1909.
3. Mechanical Vibrations;Den Hartog,1934
4. Synthesis of a nonlinear dynamic vibration absorber;Roberson;J. Frankl. Inst.,1952
5. Steady-state behavior of systems provided with nonlinear dynamic vibration absorbers;Arnold;J. Appl. Math.,1955