S. J. Bugenis, J. Vanagas, and S. Gečys, “Optimal Phase Number of Induction Motor with the Integrated Frequency Converter”, ELEKTRON ELEKTROTECH, vol. 88, no. 8, pp. 67–70, Oct. 2008, Accessed: Feb. 08, 2026. [Online]. Available: https://eejournal.ktu.lt/index.php/elt/article/view/11344