Comparative Study of Yokeless Stator Axial-Flux PM Machines Having Fractional Slot Concentrated and Integral Slot Distributed Windings for Electric Vehicle Traction Applications. - Weiwei Geng; Yu Wang 284; Jing Wang 132; Jining Hou; Jian Guo 007; Zhuoran Zhang 002 (IEEE Trans. Ind. Electron., 2023)