References:
Monus, Paul. "Permanent Magnet Motors - Build One", Rex Research
Noel, Peter A. "Permanent magnet engine." 16302 - 80 Avenue,Edmonton: Research Electronics, Reselco Ltd., Aug. 25, 1983. 4 p. Research Electronics, Reselco Ltd .Technical report, AE 100/8.25 .83 . Descriptors: - free energy, free energy devices, pemanent magnet motors.
James R. Ireland: Ceramic Permanent Magnet Motors; McGraw Hill, NY, 1968
Parker and Studders: Permanent Magnets and Their Application; Wiley and Sons, 1962.
D. Hadfield: Permanent Magnets and Magnetism; Wiley and Sons, 1962
Herbert Woodson and James Welcher: Electromechanical Dynamics (Part I / II); Wiley and Sons, NY 1968
G.R. Polgreen: New Applications of Modern Magnets; Macdonald, London, 1966
E. R. Laithwaite: Propulsion Without Wheels; English Univ. Press, London, 1966
E. Laithwaite: Induction Machines for Special Purposes; Chem. Publ. Co., Inc., NY 1966
Malcolm McCraig: Permanent Magnets in Theory and Practice
Jearl Waler: Motors in Which Magnets Attract Other Magnets in Apparent Perpetual Motion; Scientific American, March 1982.