@inproceedings{unsupervisedpretrainingforsequenceto1,
  title = {Unsupervised Pretraining for Sequence to Sequence Learning},
  author = {Ramach and Prajit ran and Peter Liu and Quoc Le},
  year = {2017},
  booktitle = {EMNLP 2017 9},
  url = {https://aclanthology.org/D17-1039},
}