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2. Prediction of total loss factors of structures, Part I: Theory and experiments;Sun;Journal of Sound and Vibration,1985
3. Results of loss factor measurement on concrete beams using a viscoelastic or sand damping system;Wolf;Wright-Patterson Air Force Base, Ohio, ASD-TDR-62-717,1962
4. Macromechanisms of damping in composite structures;Kerwin,1964
5. Absorption of structure-borne sound in building materials with and without sand-filled cavities;Kuhl;Acustica,1962