@Book{ROBUS-UNSUP2012:2012,
  editor    = {Omri Abend  and  Chris Biemann  and  Anna Korhonen  and  Ari Rappoport  and  Roi Reichart  and  Anders Søgaard},
  title     = {Proceedings of the Joint Workshop on Unsupervised and Semi-Supervised Learning in NLP},
  month     = {April},
  year      = {2012},
  address   = {Avignon, France},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W12-07}
}