@InProceedings{hahn_arabic_2012,
  author = {Michael Hahn},
  title = {Arabic {Relativization} {Patterns}: {A} {Unified} {HPSG}
  {Analysis}},
  booktitle = {Proceedings of the 19th {International} {Conference} on
  {Head}-{Driven} {Phrase} {Structure} {Grammar}},
  year = {2012},
  address = {Chungnam National University Daejeon},
  URL =
  {http://web.stanford.edu/group/cslipublications/cslipublications/HPSG/2012/hahn.pdf}
}