@inproceedings{DBLP:conf/sigir/ChatzichristofisZA11a,
  author    = {Savvas A. Chatzichristofis and
               Konstantinos Zagoris and
               Avi Arampatzis},
  title     = {The TREC files: the (ground) truth is out there},
  booktitle = {SIGIR},
  year      = {2011},
  pages     = {1289-1290},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}