@InProceedings{rankel-EtAl:2011:EMNLP,
  author    = {Rankel, Peter  and  Conroy, John  and  Slud, Eric  and  O'Leary, Dianne},
  title     = {Ranking Human and Machine Summarization Systems},
  booktitle = {Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing},
  month     = {July},
  year      = {2011},
  address   = {Edinburgh, Scotland, UK.},
  publisher = {Association for Computational Linguistics},
  pages     = {467--473},
  url       = {http://www.aclweb.org/anthology/D11-1043}
}