@article{Callmeier:00,
  author = {Ulrich Callmeier},
  title = {{PET} --- {A} Platform for Experimentation with Efficient 
           {HPSG} Processing Techniques},
  journal = {Natural Language Engineering},
  editor = {Flickinger, Dan and Oepen, Stephan and 
            Tsujii, J. and Uszkoreit, Hans},
  volume = {6 (1) ({S}pecial Issue on Efficient Processing with {HPSG})},
  pages = {99$\,$--$\,$108},
  year = 2000
}
