@inproceedings{sheehan-etal-2013-two,
    title = "A Two-Stage Approach for Generating Unbiased Estimates of Text Complexity",
    author = "Sheehan, Kathleen M.  and
      Flor, Michael  and
      Napolitano, Diane",
    editor = "Rello, Luz  and
      Saggion, Horacio  and
      Baeza-Yates, Ricardo",
    booktitle = "Proceedings of the Workshop on Natural Language Processing for Improving Textual Accessibility",
    month = jun,
    year = "2013",
    address = "Atlanta, Georgia",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W13-1506/",
    pages = "49--58"
}