@inproceedings{Oep:Cal:Fli:02,
  author = {Stephan Oepen and Ezra Callahan and Dan Flickinger and
            Christoper D.\ Manning},
  title = {{LinGO} {R}edwoods.  {A} Rich and Dynamic Treebank for {HPSG}},
  booktitle = {{LREC} Workshop on Parser Evaluation},
  address = {Las Palmas, Spain},
  year = 2002
}