@workingPaper{KiesslingKompeNiemannNöthBatliner_1994,
title={"Roger", "Sorry", "I'm still listening" : dialog guiding signals in information retrieval dialogs},
author={Kiessling, A. and Kompe, R. and Niemann, H. and Nöth, E. and Batliner, A.},
doi={http://dx.doi.org/10.22028/D291-25117},
year={1994}
}