Design of PM Brushless Motor Taking into Account Tolerances of Mass Production - Six Sigma Design Method. - Grzegorz Ombach; Jacek Junak (IAS, 2007)

Average Torque Improvement of Interior Permanent-Magnet Machine Using Third Harmonic in Rotor Shape. - Kai Wang 009; Zi-Qiang Zhu; Grzegorz Ombach; Wojciech Chlebosz (IEEE Trans. Ind. Electron., 2014)

Torque Improvement of Dual Three-Phase Permanent-Magnet Machine With Third-Harmonic Current Injection. - Kai Wang 009; Zi-Qiang Zhu; Y. Ren; Grzegorz Ombach (IEEE Trans. Ind. Electron., 2015)