1. Brown, G.H., Hoyler, C.H., and Biewirth, R.A.: ‘Theory and application of radio-frequency heating’, (D. Van Nostrand Company, New York 1947)
2. Stratton, J.A.: ‘Electromagnetic theory’, (McGraw-Hill, New York, London 1941)
3. Effect of finite thickness of magnetic substrate on planar inductors
4. Analysis of planar sandwich inductors by current images
5. ‘Soft ferrites and accessories’, (Data Handbook 2000)