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2. N.F. Rakushev, Ultralong energy transmission AC current over open overhead lines, Gosenergoizdat, Moscow, 1957 (in Russian).
3. A.S. Vedernikov, V.G. Goldstein, E.M. Shishkov, Analysis and identification directions of optimization conditions of double-circuit overhead lines 35-220 kV, using multi-circuit equivalent schemes, UrFU, Ekaterinburg, 2010, pp.80-85 (in Russian).
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5. A.S. Vedernikov, V.G. Goldstein, D.V. Ilyutkin, E.M. Shishkov, Evaluation of performance indicators of double circuit overhead transmission lines using multiconductor equivalent circuits, Journal of News of higher educational institutions. Problems of energy, 2011, no. 7/8, pp.57-61.