@InProceedings{johansson-skantze:2015:W15-46,
  author    = {Johansson, Martin  and  Skantze, Gabriel},
  title     = {Opportunities and Obligations to Take Turns in Collaborative Multi-Party Human-Robot Interaction},
  booktitle = {Proceedings of the 16th Annual Meeting of the Special Interest Group on Discourse and Dialogue},
  month     = {September},
  year      = {2015},
  address   = {Prague, Czech Republic},
  publisher = {Association for Computational Linguistics},
  pages     = {305--314},
  url       = {http://aclweb.org/anthology/W15-4642}
}