@article{PolitiWitt1999,
  author    = {Politi, Antonio and Witt, Annette},
  title     = {Fractal dimension of space-time chaos},
  year      = {1999},
  language  = {en}
}
@article{WittSpanoNeimanetal.1999,
  author    = {Witt, Annette and Spano, M. and Neiman, Alexander and Moss, F. and Dolan, K.},
  title     = {Surrogates for finding unstable periodic orbits in noisy data sets},
  year      = {1999},
  language  = {en}
}
@article{BraunFeudelGebogietal.1999,
  author    = {Braun, Robert and Feudel, Fred and Gebogi, C. and Kurths, J{\"u}rgen and Witt, Annette},
  title     = {Tracer dynamics in a flow of driven vortices},
  year      = {1999},
  language  = {en}
}