@misc{_Sixth,
 howpublished={online},
 publisher={Politechnika Łódzka. Instytut Aparatów Elektrycznych},
 publisher={Stowarzyszenie Elektryków Polskich},
 language={eng},
 title={Sixth International Conference on Switching Arc Phenomena. Part II : Postconference materials ; 12-15 September 1989, Łódź, Poland},
 type={conference materials},
 type={language document},
}