1. On the role of extension in the flexural vibrations of rings;Philipson;Journal of Applied Mechanics,1956
2. On the vibration of a thick ring in its own plane;Seidel;Journal of Engineering for Industry (Transactions of ASME,,1964
3. On the correction for shear of the differential equation for transverse vibration of prismatic bars;Timoshenko;Philosophical Magazine,1921
4. Vibrations of frames of electrical machines;Den Hartog;Journal of Applied Mechanics, Transactions of ASME,1928