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2. V.V. Konchits, V.V. Meshkov, N.K. Myshkin, Triboengineering of electrical contacts, Nauka i Teknika, Minsk, 1986, in Russian.
3. C.P. Chen, R.A. Burton, Thermoelastic effects in brushes with high current and high sliding spids, Proc. 1978 Holm Conf. on Electrical Contacts Meeting jointly with 9th Int. Research Conf. on Electrical Contact Phenomena, 1978, pp. 571–575.
4. E.I. Shobert, Carbon Brushes, Chemical Publishing, New York, 1965.
5. Influence of electrical current on static friction of metal surface in air;Brailford;Wear,1973