@Article{hla-wiener,
  author	= {F. Hlawatsch and G. Matz and H. Kirchauer and W. Kozek},
  title		= {Time-frequency formulation, design, and implementation of time-varying optimal filters for signal estimation},
  journal	= {IEEE Trans. Signal Processing},
  year		= {2000},
  month		= {May},
  number	= {5},
  volume	= {48},
  pages		= {1417--1432}
}