@article{Bracale:152,
      author       = "Bracale, A and Carpinelli, G and Leonowicz, Z and Lobos, T
                      and Rezmer, J",
      title        = "Measurement of IEC Groups and Subgroups Using Advanced
                      Spectrum Estimation Methods",
      number       = "ENY-ARTICLE-2008-117",
      pages        = "10p",
      month        = "Cze",
      year         = "2006",
      note         = "IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL.
                      57, NO. 4, APRIL 2008",
}