J. José Pérez-Loya, C. Johan D. Abrahamsson, Fredrik Evestedt, and Urban Lundin. “Performance Tests of a Permanent Magnet Thrust Bearing for a Hydropower Synchronous Generator Test-Rig”. Applied Computational Electromagnetics Society Journal (ACES), vol. 32, no. 08, July 2021, pp. 704-11, https://journals.riverpublishers.com/index.php/ACES/article/view/9535.