Krasnov, R. V. (2011). Analysis overheating problems of electric motor by type DK-409 and motor – driven compressor by type (EK – 7B) of continuous current locomotive by type (ER – 1, ER – 2) with using the thermal system of compensation. Science and Transport Progress, (36), 79–83. https://doi.org/10.15802/stp2011/8715