1. 1974 Proceedings of IUTAM Symposium on Dynamics of Rotors,1974
2. Journal of Sound and Vibration;Gladwell;On the stability of an unsymmetrical rigid rotor supported in unsymmetrical bearings,1966
3. Journal of Sound and Vibration;Gladwell;Prediction of the unstable regions of reciprocal system governed by a set of linear equations with periodic coefficients,1968
4. American Society of Mechanical Engineers, Paper No. 64-WA/APM-4;Ariaratnam;The vibration of unsymmetrical rotating shafts,1964
5. Ingenieur Archiv;Pedersen;On forward and backward precession of rotors,1972