@InProceedings{chang-clark:2010:EMNLP,
  author    = {Chang, Ching-Yun  and  Clark, Stephen},
  title     = {Practical Linguistic Steganography Using Contextual Synonym Substitution and Vertex Colour Coding},
  booktitle = {Proceedings of the 2010 Conference on Empirical Methods in Natural Language Processing},
  month     = {October},
  year      = {2010},
  address   = {Cambridge, MA},
  publisher = {Association for Computational Linguistics},
  pages     = {1194--1203},
  url       = {http://www.aclweb.org/anthology/D10-1116}
}