Visyn, M.H., Vlasenko, B.T., Kyiko, O.I. and Yehorov, O.O. 2006. IMPROVING THE EFFICIENCY OF THE PROTECTION CIRCUIT OF THE TRACTION MOTORS FROM EXTERNAL AND INTERNAL SHORT CIRCUITS DURING REGENERATIVE BRAKING ON ELECTRIC LOCOMOTIVES DE1. Science and Transport Progress . 9 (Dec. 2006), 115–119. DOI:https://doi.org/10.15802/stp2005/19982.