@inproceedings{ha-etal-2012-combining, title = "Combining Verbal and Nonverbal Features to Overcome the ``Information Gap'' in Task-Oriented Dialogue", author = "Ha, Eun Young and Grafsgaard, Joseph F. and Mitchell, Christopher and Boyer, Kristy Elizabeth and Lester, James C.", editor = "Lee, Gary Geunbae and Ginzburg, Jonathan and Gardent, Claire and Stent, Amanda", booktitle = "Proceedings of the 13th Annual Meeting of the Special Interest Group on Discourse and Dialogue", month = jul, year = "2012", address = "Seoul, South Korea", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/fix-sig-urls/W12-1634/", pages = "247--256" }