@inproceedings{walker:2011,
  author    = {Walker, Heike},
  title     = {Adjuncts and the {HPSG} binding theory},
  booktitle = {{Proceedings of the 18th International Conference on Head-Driven Phrase Structure Grammar, University of Washington}},
  editor    = {Müller, Stefan},
  OPTissn   = {15351793},
  doi       = {10.21248/hpsg.2011.13},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  pages     = {227--247},
  year      = {2011},
}

@inproceedings{walker:2011-cr,
  crossref  = {HPSG2011},
  author    = {Walker, Heike},
  title     = {Adjuncts and the {HPSG} binding theory},
  doi       = {10.21248/hpsg.2011.13},
  pages     = {227--247},
}

@proceedings{HPSG2011,
  editor    = {Müller, Stefan},
  title     = {{Proceedings of the 18th International Conference on Head-Driven Phrase Structure Grammar, University of Washington}},
  booktitle = {{Proceedings of the 18th International Conference on Head-Driven Phrase Structure Grammar, University of Washington}},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  OPTissn   = {15351793},
  year      = {2011},
}