Sorry, I didn't catch that!. Bohus, D. and Rudnicky, A. I In Dybkjaer, L. and Minker, W., editors, Recent Trends in Discourse and Dialogue, of 39, pages 123-154. Springer, Dordrecht.
bibtex   
@incollection{bohus_sorry_2008,
	Address = {Dordrecht},
	Author = {Bohus, Dan and Rudnicky, Alexander I},
	Booktitle = {Recent Trends in Discourse and Dialogue},
	Date = {2008},
	Date-Modified = {2016-09-24 18:55:59 +0000},
	Editor = {Dybkjaer, Laila and Minker, Wolfgang},
	Keywords = {dialogue systems, speech technology},
	Pages = {123-154},
	Publisher = {Springer},
	Series = {39},
	Title = {Sorry, I didn't catch that!}}
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