@article{learningwhentoattendforneuralmachine,
  title = {Learning When to Attend for Neural Machine Translation},
  author = {Junhui Li and Muhua Zhu},
  year = {2017},
  eprint = {1705.11160},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1705.11160v1},
}