@Book{Demos:2018,
  editor    = {Fei Liu  and  Thamar Solorio},
  title     = {Proceedings of ACL 2018, System Demonstrations},
  month     = {July},
  year      = {2018},
  address   = {Melbourne, Australia},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/P18-4}
}