Cogging torque reduction methodsKudrjavtsev, Oleg; Kilk, AleksanderPQ2014 : the 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ) : June 11-13, 2014, Rakvere, Estonia : proceedings2014 / p. 251-254 : ill Study and verification of a slow speed PM generator with outer rotor for small scale wind turbinesKilk, Aleksander; Kudrjavtsev, OlegPQ2012 : 8th International Conference : 2012 Electric Power Quality and Supply Reliability : June 11-13, 2012, Tartu, Estonia : conference proceedings2012 / p. 19-24 : ill https://ieeexplore.ieee.org/document/6256198