@article{onsingleandmultiplerepresentationsin,
  title = {On Single and Multiple Representations in Dense Passage Retrieval},
  author = {Craig Macdonald and Nicola Tonellotto and Iadh Ounis},
  year = {2021},
  eprint = {2108.06279},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2108.06279v2},
}