@Article{dzak,
  author	= {H. B{\"o}lcskei and F. Hlawatsch},
  title		= {Discrete {Z}ak transforms, polyphase transforms, and applications},
  journal	= {IEEE Trans. Signal Processing},
  year		= {1997},
  month		= {April},
  volume	= {45},
  number	= {4},
  pages		= {851--866}
}