@Article{Callmeier:2000,
      AUTHOR = {Callmeier, Ulrich},
      TITLE = {PET. A Platform for Experimentation with Efficient HPSG Processing Techniques},
      YEAR = {2000},
      JOURNAL = {Journal of Natural Language Engineering},
      VOLUME = {6},
      NUMBER = {1},
      PAGES = {99-108},
      URL = {https://www.coli.uni-saarland.de/~uc/pubs/nle00.ps},
      ANNOTE = {COLIURL : Callmeier:2000:PPE.pdf Callmeier:2000:PPE.ps}
}