@article{learningwhenandwhattoaskahierarchical,
  title = {Learning When and What to Ask: a Hierarchical Reinforcement Learning Framework},
  author = {Khanh Xuan Nguyen and Yonatan Bisk and Hal Daumé III},
  year = {2021},
  url = {https://openreview.net/forum?id=0ze7XgWcYNV},
}