@Book{LAW:2015,
  editor    = {Adam Meyers  and  Ines Rehbein  and  Heike Zinsmeister},
  title     = {Proceedings of The 9th Linguistic Annotation Workshop},
  month     = {June},
  year      = {2015},
  address   = {Denver, Colorado, USA},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W15-16}
}