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), pp. 79–83. doi: 10.15802/stp2011/8715.