@Book{W17-55:2017,
  editor    = {Kristiina Jokinen  and  Manfred Stede  and  David DeVault  and  Annie Louis},
  title     = {Proceedings of the 18th Annual SIGdial Meeting on Discourse and Dialogue},
  month     = {August},
  year      = {2017},
  address   = {Saarbrücken, Germany},
  publisher = {Association for Computational Linguistics},
  url       = {http://aclweb.org/anthology/W17-55}
}