@inproceedings{oepen2002lingo,
 author = {Stephan Oepen and Ezra Callahan and Dan Flickinger and Christopher D. Manning and Kristina Toutanova},
 booktitle = {Beyond PARSEVAL workshop at the Third International Conference on Language Resources and Evaluation (LREC 2002)},
 title = {LinGO Redwoods: A Rich and Dynamic Treebank for HPSG},
 url = {https://nlp.stanford.edu/pubs/oepen2002lingo.pdf},
 year = {2002}
}