A density version of the Hales-Jewett theorem

@article{Furstenberg1991ADV,
  title={A density version of the Hales-Jewett theorem},
  author={Harry Furstenberg and Y. Katznelson},
  journal={Journal d’Analyse Math{\'e}matique},
  year={1991},
  volume={57},
  pages={64-119}
}
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