@ARTICLE{Kulikowski_K._Efficiency_2011,
 author={Kulikowski, K. and Sikorski, A.},
 volume={59},
 number={No 4},
 journal={Bulletin of the Polish Academy of Sciences Technical Sciences},
 pages={569-574},
 howpublished={online},
 year={2011},
 title={Efficiency improvement due to direct torque and flux three levels three areas control method applied to small hydroelectric power plant},
 URL={http://www.journals.pan.pl/Content/83447/PDF/27_paper.pdf},
 doi={10.2478/v10175-011-0070-6},
}