Y. Guan, Z. Q. Zhu, G. J. Li, Z. Azar, A. S. Thomas, F. V. Santos, M. Odavic, Sep.
2017, 5204009., Influence of Pole Number and Stator Outer Diameter on Volume, Weight,
and Cost of Superconducting Generators With Iron-Cored Rotor Topology for Wind Turbines,
IEEE Trans. Appl. Supercond., Vol. 27, No. 6