@Article{PapandreouHlawatschBoudreauxBartels93a,
  author	= {A. Papandreou and F. Hlawatsch and G. F. Boudreaux-Bartels},
  title		= {The hyperbolic class of quadratic time-frequency representations---{P}art {I}: Constant-{Q} warping, the hyperbolic paradigm, properties, and members},
  journal	= {IEEE Trans. Signal Processing, Special Issue on Wavelets and Signal Processing},
  year		= {1993},
  month		= {Dec.},
  volume	= {41},
  number	= {12},
  pages		= {3425--3444}
}