1. Allcock, D., 1999. Abradable Stator Gas Turbine Labyrinth Seals (Ph.D. thesis). Cranfield University.
2. Flow through annular orifices;Bell;Trans. ASME,1957
3. Investigations on the mass flow and flow induced forces in contactless seals of turbomachines;Benckert,1979
4. Turbomachinery Rotordynamics: Phenomena, Modeling and Analysis;Childs,1993
5. Rotordynamic Forces Developed by Labyrinth Seals;Childs,1984