Towards Zeptosecond-scale Pulses from X-ray Free-electron Lasers

@article{Dunning2013TowardsZP,
  title={Towards Zeptosecond-scale Pulses from X-ray Free-electron Lasers},
  author={D. J. Dunning and Brian W J McNeil and N. R. Thompson},
  journal={Physics Procedia},
  year={2013},
  volume={52},
  pages={62-67}
}

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