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3. Baun, D.O., Fittro, R.L., Maslen, E.H. 1996. Force versus current and air gap calibration of a double acting magnetic thrust bearing. Presented at the International Gas Turbine & Aeroengine Congress and Exhibition, Birmingham, UK, June 2–5. ASME pamphlet paper no. 96-GT-121.
4. Fittro, R.L., Baun, D.O., Maslen, E.H., Allaire, P.E. 1997. Calibration of an 8-pole planar radial magnetic actuator. Presented at the International Gas Turbine & Aeroengine Congress and Exhibition, Orlando, FL, June 2–5.
5. Imlach, J., Kasarda, M.E.F., Balaji, P.A. 2000. Enhancements to AMB force measurement procedures for application to a rocket thrust measurement system. In: International Gas Turbine & Aeroengine Congress and Exhibition, Munich, Germany, May 8–11. ASME pamphlet paper no. 2000-GT-414.