1. Maxwell, J. C.: A treatise on electricity and magnetism (Vol. 1+2). unabridged reprint of the 3rd edition of 1891, Dover Publications, Inc., New York 1954
2. Stratton, J. A.: Electromagnetic theory. McGraw-Hill Book Company, New York and London, 1941
3. Smythe, W. R.: Static and dynamic electricity. McGraw-Hill Book Company, New York, Toronto, London, 1941
4. Sommerfeld, A.: Elektrodynamik. reprint of the 4th edition, Verlag Harri Deutsch, Thun, 1977
5. Plonsey, R.;Collin, R. E.: Principles and applications of electromagnetic fields. McGraw-Hill Book Company, New York, 1961