@inproceedings{wittenburg-broeder-buitelaar:2004:NLPXML,
  author    = {Wittenburg, Peter  and  Broeder, Daan  and  Buitelaar, Paul},
  title     = {Towards Metadata Interoperability},
  booktitle = {Proceedings of the 4th Workshop on NLP and XML (NLPXML-2004)},
  editor = {Graham Wilcock, Nancy Ide and Laurent Romary},
  year      = 2004,
  month     = {July},
  address   = {Barcelona, Spain},
  publisher = {Association for Computational Linguistics},
  pages     = {9--16}
}