Smith, D. M., 1933, The motion of a rotor carried by a flexible shaft in flexible bearings, Proc. R. Soc. London, Ser. A, 142, pp. 92-118.
Sohre, J.S., 1991, Turbomachinery Problems and their Correction, Standardization and Condition Monitoring, Workshop, March 11-13, (Chapter 7), Houston.
Someya, T., 1989, Journal Bearing Hand Book. Berlin … Tokyo: Springer.
Sommerfeld, A., 1927, Beiträge zum dynamischen ausbau der festigkeitslehe, Physikal Zeitschr 3,  266 and 286.
Spectra Quest: Training and diagnosis in machine vibration analysis. (http://www.spectraquest.com).
Stodola, A., 1924, Dampf- und Gasturbinen, 4, Aufl., Berlin: Springer. English translation (1927), Steam and Gas Turbines, McGraw-Hill, New York.
SV3X: Remote Machinery Monitor. (http://www.vib.com/prod-Remote-Machinery-Monitor.html).
Thearle, E.L., 1932, Dynamic balancing of rotating machinery in the field, ASME Trans., Paper APM-56-19.
Tiwari, R. and Dharmaraju, N., 2006, Mechanical Systems and Signal Processing, Development of a condensation scheme for transverse rotational degrees of freedom elimination in identification of beam crack parameters (In press).
Tiwari, R., Lees, A.W. and Friswell, M.I., 2004, Identification of dynamic bearing parameters: a review, The Shock & Vibration Digest, 36(2), 99-124.
Tiwari, R., Manikandan, S. and Dwivedy, S.K., 2005, A review on experimental estimation of the rotor dynamic parameters of seals, The Shock & Vibration Digest, 37(3), 261-284.
Thomas, J.J., 1958, Instabile eigenschwingungen von turbinenlaufern, Angefacht durch die spaltstromungen, in stopfbuchsen and beschauflungen, AEG-Sonderdruck, pp. 1039-1063.
Tondl, A., 1965, Some Problems of Rotor Dynamics, Czechoslovak Academy of Sciences, Prague, Czechoslovakia.
Tondl, A., 1991, Quenching of Self-excited Vibrations, Academia: Praha.
Tondl, A., 1998, To the Problem of Quenching Self-excited Vibrations, Acta Technica CSAV 43, 109-116.
TURBINE-PAK: A scientific software for vibration analysis of non-linear multi-bearing Rotor-Bearing-Foundation (RBF) systems. (http://sci-e-research.com/tpak.html).
Uhrig, R., 1966, Reduction of the number of unknown in the displacement method applied to kinetic problems, J. Sound and Vibration, 4, 149-155.
Vance J.M., 1988, Rotordynamics of Turbomachinery, John Wiley & Sons, Inc., NY.
Wolf, J.A., 1968, Whirl dynamics of a rotor partially filled with liquid, Trans. ASME, J. Appl. Mech., 35(4), 676-682.
Wowk, V., 1995, Machinery Vibration: Balancing, McGraw-Hill, New York.
Wowk, V., 1991, Machinery Vibration: Measurement and Analysis, McGraw-Hill, New York.
XLRotor:(Rotating Machinery Analysis, Inc.) - Commercial 1-D beam element solver. (http://www.xlrotor.com/index.shtml).
XLTRC4: (Texas A&M) - Academic 1-D beam element solver.  (http://turbolab.tamu.edu/home/ default.aspx).
Yamamoto, T., 1955, On the critical speed of a shaft of sub-harmonic oscillation, Trans JSME, 21(111), 853-858 (in Japanese).
Yamamoto, T., 1957, On the vibrations of a rotating shaft, Mem. Fac. Eng. Nagoya Univ., 9(1), 25-40.
Yamamoto, T., and Ishida, Y., Linear and Nonlinear Rotordynamics, Wiley & Sons: New York, 2001