@Book{ENLG:2011,
  editor    = {Claire Gardent  and  Kristina Striegnitz},
  title     = {Proceedings of the 13th European Workshop on Natural Language Generation},
  month     = {September},
  year      = {2011},
  address   = {Nancy, France},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W11-28}
}