@article{PhysRevLett.93.163001,
  title = {Suppression of Excitation and Spectral Broadening Induced by Interactions in a Cold Gas of Rydberg Atoms},
  author = {Singer, Kilian and Reetz-Lamour, Markus and Amthor, Thomas and Marcassa, Luis Gustavo and Weidem\"uller, Matthias},
  journal = {Phys. Rev. Lett.},
  volume = {93},
  issue = {16},
  pages = {163001},
  numpages = {4},
  year = {2004},
  month = {Oct},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevLett.93.163001},
  url = {https://link.aps.org/doi/10.1103/PhysRevLett.93.163001}
}