@inproceedings{lopez-de-lacalle-agirre-2015-crowdsourced,
    title = "Crowdsourced Word Sense Annotations and Difficult Words and Examples",
    author = "Lopez de Lacalle, Oier  and
      Agirre, Eneko",
    editor = "Purver, Matthew  and
      Sadrzadeh, Mehrnoosh  and
      Stone, Matthew",
    booktitle = "Proceedings of the 11th International Conference on Computational Semantics",
    month = apr,
    year = "2015",
    address = "London, UK",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W15-0114/",
    pages = "94--100"
}