1. On the vibrations of beams or rods carrying a central mass;Chen;Journal of Applied Mechanics, Transactions of the American Society of Mechanical Engineers,1963
2. Vibration frequencies of uniform beams with central masses;Baker;Journal of Applied Mechanics,Transactions of the American Society of Mechanical Engineers,1964
3. Vibration frequencies of a uniform beam with central mass and elastic supports;Hess;Journal of Applied Mechanics, Transactions of the American Society of Mechanical Engineers,1964
4. An analytical and experimental investigation of the natural frequencies of uniform rectangular cross-section free-free sandwich beams;Clary;NASA TN D-1967,1963
5. Effect of transverse shear and rotary inertia on the natural frequency of a uniform beam;Kruszewski;National Advisory Committee for Aeronautics Technical Note 1909,1949