@inproceedings{johnson-2002-simple,
    title = "A Simple Pattern-matching Algorithm for Recovering Empty Nodes and their Antecedents",
    author = "Johnson, Mark",
    editor = "Isabelle, Pierre  and
      Charniak, Eugene  and
      Lin, Dekang",
    booktitle = "Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2002",
    address = "Philadelphia, Pennsylvania, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/P02-1018/",
    doi = "10.3115/1073083.1073107",
    pages = "136--143"
}