Quasi-optimal law of angular velocity variation of the rotation of the rotor shaft of the series excitation direct-current electric motors of the tram electric drives under the invariable loading. Вісник ВПІ [Internet]. 2010 Nov. 12 [cited 2026 Nov. 15];(2):29-33. Available from: https://vpi.sprava.net/index.php/visnyk/article/view/431