N. Ahmad, F. Khan, N. Ullah, and M. Z. Ahmad. “Performance Analysis of Outer Rotor Wound Field Flux Switching Machine for Direct Drive Application”. Applied Computational Electromagnetics Society Journal (ACES), vol. 33, no. 08, July 2021, pp. 913-22, https://journals.riverpublishers.com/index.php/ACES/article/view/9051.