@article{cristobal1987wigner,
  title={Wigner distribution representation of digital images},
  author={Crist{\'o}bal, Gabriel and Besc{\'o}s, Juli{\'a}n and Santamaria, Javier and Montes, J},
  journal={Pattern recognition letters},
  volume={5},
  number={3},
  pages={215--221},
  year={1987},
  publisher={North-Holland}
}

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