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2. Thomson, J. J.: Recent Researches on Electricity and Magnetism. Oxford: Clarendon Press 1893.
3. Bedell, F., u. A. C. Crehore: Alternating Currents. New York: W. J. Johnston Co. 1893.
4. Heaviside, O.: Electromagnetic Theory, Bd. 1–3. London: The Electrician Printing and Publishing Co. 1899; 3. Aufl., New York: Dover Publications 1950.
5. Steinmetz, C. P.: Theory and Calculation of Transient Electric Phenomena and Oscillations. New York: McGraw-Hill Book Company, Inc. 1908; 3. Aufl., 1920.