@article{4892,
  author = {Marek Sikora and Mitchell Begelman},
  title = {Does an orbiting star cause periodic modulation of X-rays from NGC6814?},
  year = {1992},
  journal = {Nature},
  volume = {356},
  pages = {224-225},
  month = {Jul-03-1993},
  issn = {0028-0836},
  doi = {10.1038/356224a0},
}