@Book{SIGDIAL2012:2012,
  editor    = {Gary Geunbae Lee  and  Jonathan Ginzburg  and  Claire Gardent  and  Amanda Stent},
  title     = {Proceedings of the 13th Annual Meeting of the Special Interest Group on Discourse and Dialogue},
  month     = {July},
  year      = {2012},
  address   = {Seoul, South Korea},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W12-16}
}