1. Chrisinger J. et al. The Design and Initial Operation of a Magnetic Model Suspension and Force Measurement System. Aeronautical Research Laboratories, Office of Aerospace Re search, U.S. Air Force Report ARL 63-16.
2. Suspension Magnetique I'ane Maquette en Soufflerie;Tournier;La Recherche Aeronautique,1957
3. Private Communications.
4. Beams J. W. Magnetic Suspension Ultracentrifuge Circuits. Electronics, March 1954.
5. Kuhlthau A. R. The Investigation of Low Density Drag Phenomena Utilizing Laboratory Techniques. Paper No. 29, Proceedings of the Fourth U.S. Navy Symposium on Aero- ballistics, Nav. Ord. Report No. 5904, 1st May 1958.