Bobojanov М.K., Rismukhamedov D.A., Tuychiev F.N., Shamsutdinov H.F. and Magdiev H.G. “Сonstruction and Analysis of the Pole-Changing Windings for the Pole Pairs Ratio 5/6 by Method Discretely Specified Spatial Function ”. International Journal of Advanced Science and Technology, Vol. 29, no. 11s, June 2020, pp. 1410 -15, http://sersc.org/journals/index.php/IJAST/article/view/21001.