@InProceedings{derczynski-gaizauskas:2013:IWCS2013,
  author    = {Derczynski, Leon  and  Gaizauskas, Robert},
  title     = {Empirical Validation of Reichenbach’s Tense Framework},
  booktitle = {Proceedings of the 10th International Conference on Computational Semantics (IWCS 2013) -- Long Papers},
  month     = {March},
  year      = {2013},
  address   = {Potsdam, Germany},
  publisher = {Association for Computational Linguistics},
  pages     = {71--82},
  url       = {http://www.aclweb.org/anthology/W13-0107}
}