@inproceedings{heck-meurers-2023-relevance,
    title = "On the relevance and learner dependence of co-text complexity for exercise difficulty",
    author = "Heck, Tanja  and
      Meurers, Detmar",
    editor = {Alfter, David  and
      Volodina, Elena  and
      Fran{\c{c}}ois, Thomas  and
      J{\"o}nsson, Arne  and
      Rennes, Evelina},
    booktitle = "Proceedings of the 12th Workshop on NLP for Computer Assisted Language Learning",
    month = may,
    year = "2023",
    address = "T{\'o}rshavn, Faroe Islands",
    publisher = "LiU Electronic Press",
    url = "https://preview.aclanthology.org/fix-sig-urls/2023.nlp4call-1.9/",
    pages = "71--84"
}