@inproceedings{schlangen-2004-causes,
    title = "Causes and Strategies for Requesting Clarification in Dialogue",
    author = "Schlangen, David",
    booktitle = "Proceedings of the 5th {SIG}dial Workshop on Discourse and Dialogue at {HLT}-{NAACL} 2004",
    month = apr # " 30 - " # may # " 1",
    year = "2004",
    address = "Cambridge, Massachusetts, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W04-2325/",
    pages = "136--143"
}