@inproceedings{ball:2017,
  author    = {Ball, Douglas},
  title     = {``{VP}'' adverbs without a {VP}: {The} syntax of adverbs in {Tongan}},
  booktitle = {{Proceedings of the 24th International Conference on Head-Driven Phrase Structure Grammar, University of Kentucky, Lexington}},
  editor    = {Müller, Stefan},
  OPTissn   = {15351793},
  doi       = {10.21248/hpsg.2017.4},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  pages     = {61--81},
  year      = {2017},
}

@inproceedings{ball:2017-cr,
  crossref  = {HPSG2017},
  author    = {Ball, Douglas},
  title     = {``{VP}'' adverbs without a {VP}: {The} syntax of adverbs in {Tongan}},
  doi       = {10.21248/hpsg.2017.4},
  pages     = {61--81},
}

@proceedings{HPSG2017,
  editor    = {Müller, Stefan},
  title     = {{Proceedings of the 24th International Conference on Head-Driven Phrase Structure Grammar, University of Kentucky, Lexington}},
  booktitle = {{Proceedings of the 24th International Conference on Head-Driven Phrase Structure Grammar, University of Kentucky, Lexington}},
  publisher = {CSLI Publications},
  address   = {Stanford, CA},
  OPTissn   = {15351793},
  year      = {2017},
}