@article{Leonowicz:241,
      author       = "Leonowicz, Z and Lobos, T",
      title        = "Analysis of traction system time-varying signals using
                      ESPRIT subspace spectrum estimation method",
      number       = "ENY-ARTICLE-2008-190. I07/2006/I-090",
      pages        = "4p",
      month        = "Kwi",
      year         = "2006",
      note         = "The 32nd Annual Conference of the IEEE Industrial
                      Electronics Society. IECON '06. Proceedings , Paris,
                      November 7-10, 2006,  pp. 3424-3427.",
}