@conference{est-fmax-nonstac-tcd-neur,
  author = {Zabolotny, Wojciech Marek and Wollk-Laniewski, Przemyslaw
            and Luczywek, Elzbieta and Fersten, Ewa},
  title = "Estimation of Maximum Frequency in the Nonstationary
           Transcranial Doppler Signal - Neural Network Based Approach",
  booktitle = "Proceedings of the XXI-st National Conference Circuit
               Theory and Electronic Networks",
  year = 1998,
  pages = "529--534"}