@article{piwek-boyer-2012-varieties,
    title = "Varieties of Question Generation: Introduction to this Special Issue: Introduction to this Special Issue",
    author = "Piwek, Paul  and
      Boyer, Kristy Elizabeth",
    editor = "Aist, Gregory  and
      Piwek, Paul  and
      Boyer, Kristy Elizabeth",
    journal = "Dialogue {\&} Discourse",
    volume = "3",
    year = "2012",
    url = "https://preview.aclanthology.org/ingest-dnd/2012.dnd-3.8/",
    doi = "10.5087/dad.2012.201",
    pages = "1--9"
}