@article{explainingandgeneralizingbacktranslation,
  title = {Explaining and Generalizing Back-Translation through Wake-Sleep},
  author = {Ryan Cotterell and Julia Kreutzer},
  year = {2018},
  eprint = {1806.04402},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1806.04402v1},
}