1. Alford, J. S., 1965, “Protecting Turbomachinery From Self-Excited Rotor Whirl,” ASME Journal of Engineering for Power, Oct., pp. 333–344.
2. Benckert, H., and Wachter, J., 1980, “Flow Induced Spring Coefficients of Labyrinth Seals for Application in Rotordynamics,” Proceedings of the Institution of Mechanical Engineers, C258/80, Sept.
3. Childs D. W. , 1978, “The Space Shuttle Main Engine High-Pressure Fuel Turbopump Rotordynamic Instability Problem,” ASME Journal of Engineering for Power, Vol. 100, pp. 48–57.
4. Childs, D., 1993, Turbomachinery Rotordynamics, Chapter 5, Wiley InterScience, NY, pp. 290–300.
5. Childs, D. W., and Vance, J. M., 1997, “Annular Seals and the Rotordynamics of Compressors and Turbines,” Proceedings of 26th Turbomachinery Symposium., Sept. 14–18, Houston, TX, pp. 201–220.