@Conference{spec_asilomar98,
  author	= {G. Matz and F. Hlawatsch},
  title		= {Time-varying spectra for underspread and overspread nonstationary processes},
  booktitle	= {Proc. 32nd Asilomar Conf. Signals, Systems, Computers},
  year		= {1998},
  month		= {Nov.},
  address	= {Pacific Grove, CA},
  pages		= {282--286}
}