1. A model study of the buckling behaviour of hyperbolic shells;Der,1968
2. Natural frequencies of cooling tower shells;Neal;Journal of Strain Analysis,1967
3. Vibration of cooling-tower shells;Williams;Proceedings of the conference held at the Institution of Civil Engineers: Natural draught cooling towers-Ferrybridge and after, Paper No.,1967
4. Free vibration of rotationally symmetric shells;Kalnins;Journal of the Acoustical Society of America,1964