1. IEC 60027-4 Letter symbols to be used in electrical technology. Rotating electric machines.
2. IEC 60404-8-1 Specifications for individual materials. Magnetically hard materials.
3. Intens®.
https://www.semafor.ch/en/products/intens/
. Last checked: 22.10.2018.
4. Brauer, M., Germishuizen, J., Jöckel, A., Körner, O. (2004): Dynamic short circuits of traction drives: comparison of induction motors with PM synchronous motors. In Proceedings of the international conference on electrical machines.
5. Germishuizen, J., Kamper, M. (2009): IPM traction machine with single layer non-overlapping concentrated windings. IEEE Trans. Ind. Appl., 45(4), 1387–1394.