1. Vibration of Beams Carrying Discrete Dampers and Masses
2. Meirovitch, L., Aualvtical Methods in Vibrations, Macmillan Co., 1967. page179.
3. Omrani. I. Vibration and Control of Beams and Plates Carrving Point Masses. Discrete Dambers Sbrinas Due t o Point Forces. M.S. project, State University of New York a t Buffalo,Department of Mechanical and Aerospace Engineering, 1982, page17.
4. Free Flexural Vibrations of Damped Plates
5. Classical Normal Modes in Damped Linear Dynamic Systems