@inproceedings{Chierici:2007rC,
  author = "Chierici, Roberto",
  title = "{ttbar production at CMS}",
  doi = "10.22323/1.024.0021",
  booktitle = "Proceedings of International Workshop on Top Quark Physics {\textemdash} PoS(TOP2006)",
  year = 2007,
  volume = "024",
  pages = "021"
}