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2. Theoretical and experimental study of hysteresis electrical machines with disc and cylindrical high temperature superconducting rotors;Kovalev,1994
3. Bulk MELT Textured YBCO for Electrical Hysteresis Machines and Levitated Linear Guidance System;Gawalek,1996
4. Hysteresis Machines;Kovalev,1995
5. The bulk high temperature superconductors implication for electromachinery;Kovalev;Supercond. Res. Dev.,1995