@inproceedings{WimalasuriyaDou09b,
  author    = {Daya C. Wimalasuriya and Dejing Dou},
  title     = "{Using Multiple Ontologies in Information Extraction}",
  booktitle   = {Proceedings of the 18th ACM Conference
on Information and Knowledge Management (CIKM)},
  pages     = {235-244},
  year      = {2009},
}