@InProceedings{johnson-EtAl:1999:ACL,
  author    = {Mark Johnson  and  Stuart Geman  and  Stephen Canon  and  Zhiyi Chi  and  Stefan Riezler},
  title     = {Estimators for Stochastic "Unification-Based" Grammars},
  booktitle = {Proceedings of the 37th Annual Meeting of the Association for Computational Linguistics},
  month     = {June},
  year      = {1999},
  address   = {College Park, Maryland, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {535--541},
  url       = {http://www.aclweb.org/anthology/P99-1069},
  doi       = {10.3115/1034678.1034758}
}