@inproceedings{learningtoretrievepassageswithout,
  title = {Learning to Retrieve Passages without Supervision},
  author = {Ori Ram and Gal Shachaf and Omer Levy and Jonathan Berant and Amir Globerson},
  year = {2021},
  booktitle = {NAACL 2022 7},
  eprint = {2112.07708},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.07708v2},
}