| 1 | Moon, Francis C. Superconducting levitation, ISBN-13: 978-0-471-55925-22004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
| 2 | Tinkham, M. Introduction to Superconductivity, McGraw-Hill, 2nd Ed., 1996. |
| 3 | Hull, “J. R. Superconducting Bearings and Levitation Devices,” Superconductor Science and Technology, 2000. |