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\bibitem{misc.bran98}
E.~N. Committee, ``{Channel Models for HIPERLAN/2 in different indoor
  scenarios},'' European Telecommunications Standards Institute,
  Sophia-Antipolis, Valbonne, France, {Norme ETSI, document 3ERI085B}, 1998.

\bibitem{book.vaidyanathan93}
P.~P. Vaidyanathan, \emph{{Multirate Systems and Filter Banks}}.\hskip 1em plus
  0.5em minus 0.4em\relax Englewood Cliffs, New Jersey, USA: Prentice Hall,
  1993.

\bibitem{report.sandell96}
O.~Edfors, M.~Sandell, J.~van~de Beek, S.~Wilson, and P.~Borjesson, ``{Analysis
  of DFT-based channel estimators for OFDM},'' Lulea University of
  Technology,'' {Research Report TULEA 1996:17}, 1996.

\end{thebibliography}