@inproceedings{penn-richter:2004,
  author    = {Penn, Gerald and Richter, Frank},
  title     = {{Lexical Resource Semantics}: {From} theory to implementation},
  booktitle = {{Proceedings of the 11th International Conference on Head-Driven Phrase Structure Grammar, Center for Computational Linguistics, Katholieke Universiteit Leuven}},
  editor    = {Müller, Stefan},
  OPTissn   = {15351793},
  doi       = {10.21248/hpsg.2004.24},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  pages     = {423--443},
  year      = {2004},
}

@inproceedings{penn-richter:2004-cr,
  crossref  = {HPSG2004},
  author    = {Penn, Gerald and Richter, Frank},
  title     = {{Lexical Resource Semantics}: {From} theory to implementation},
  doi       = {10.21248/hpsg.2004.24},
  pages     = {423--443},
}

@proceedings{HPSG2004,
  editor    = {Müller, Stefan},
  title     = {{Proceedings of the 11th International Conference on Head-Driven Phrase Structure Grammar, Center for Computational Linguistics, Katholieke Universiteit Leuven}},
  booktitle = {{Proceedings of the 11th International Conference on Head-Driven Phrase Structure Grammar, Center for Computational Linguistics, Katholieke Universiteit Leuven}},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  OPTissn   = {15351793},
  year      = {2004},
}