@string{TLT:02 = {Proceedings of the 1st {W}orkshop on 
                  {T}reebanks and {L}inguistic Theories}}

@inproceedings{Tou:Man:Oep:02,
  author = {Kristina Toutanova and Christopher D. Manning and Stephan Oepen},
  title = { Parse Ranking for a Rich {HPSG} Grammar},
  booktitle = TLT:02,
  address = {Sozopol, Bulgaria},
  year = 2002,
  pdf = {http://www.BulTreeBank.org/proceedings/paper17.pdf}
}