1. The bending vibration of a circular ring;Hoppe;Crelle Journal of Mathematics,1871
2. Two-dimensional theory of vibrations of a circular ring of rectangular cross-section;Federhofer;Sitzungsberichte der Akademie der Wissenschaften in Wien, IIA,1935
3. Inplane vibrations of circular rings with a radially variable thickness;Lecoanet;Transactions of the American Society of Mechanical Engineers, Journal of Vibration, Acoustics, Stress and Reliability in Design,1983
4. In-plane flexural vibrations of circular rings;Rao;Transactions of the American Society of Mechanical Engineers, Journal of Applied Mechanics,1969
5. Simple frequency expression of in-plane vibration of thick circular rings;Kirkhope;Journal of the Acoustical Society of America,1976