1. Foucault and Eddy Currents Put to Service;Bachelet;Engineer,1912
2. Bechtel-MIT, Inc. 1992 Maglev System Concept Definition DTFR 53-92-C-00003
3. Suspension and Guidance of Vehicles by Superconducting Magnets
4. Coffey , H. T. Colton , J. D. Mahrer , K. D. 1973 Study of a Magnetically Levitated Vehicle FRA-RT-73-24
5. Force Calculations for Hybrid (Ferro-Nullflux) Low-Drag Systems;Danby;IEEE Trans. Magn.,1974