@article{1942,
  author = {S. Campana and D. Lazzati and E. Ripamonti and Rosalba Perna and S. Covino and G. Tagliaferri and A. Moretti and P. Romano and G. Cusumano and G. Chincarini},
  title = {A Metal-rich Molecular Cloud Surrounds GRB 050904 at Redshift 6.3},
  year = {2007},
  journal = {The Astrophysical Journal},
  volume = {654},
  pages = {L17 - L20},
  month = {Jan-01-2007},
  issn = {0004-637X},
  doi = {10.1086/510719},
}