1. Ardayfio, D. and Frohrib, D.A., 1976, “Instabilities of an Asymmetric Rotor With Asymmetric Shaft Mounted on Symmetric Elastic Supports”, J. of Eng. for Industry, pp. 1161–1165.
2. Bishop, R.E.D. and Parkinson, A.G., 1965, “Second Order Vibration of Flexible Shafts”, Phil. Trans of Royal Society of London, Vol. 259, pp. 1–31.
3. Cowper, G.R., 1966, “The shear Coefficient in Timoshenko’s Beam Theory” J. of Applied Mechanics, pp. 335–340.
4. Dimentberg, F.M., 1961, “Flexural Vibration of Rotating Shaft”, translated from Russian by Production Engineering Research Association, Butterworths, London.
5. Foote, W.R., Ponitsky, H. and Slade, J.J. Jr. 1943. “Critical Speeds of a Rotor With Unequal Flexibilities, Mounted in Bearings of Unequal Flexibility” J. of Applied Mechanics, pp. A77–A84.