@inproceedings{madge-etal-2019-crowdsourcing,
    title = "Crowdsourcing and Aggregating Nested Markable Annotations",
    author = "Madge, Chris  and
      Yu, Juntao  and
      Chamberlain, Jon  and
      Kruschwitz, Udo  and
      Paun, Silviu  and
      Poesio, Massimo",
    editor = "Korhonen, Anna  and
      Traum, David  and
      M{\`a}rquez, Llu{\'i}s",
    booktitle = "Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2019",
    address = "Florence, Italy",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P19-1077/",
    doi = "10.18653/v1/P19-1077",
    pages = "797--807"
}