@misc{soberon-2018-thieves-sandwiches,
  title = {{Thieves can make sandwiches}},
  author = {Pavle V. M. Blagojević and Pablo Soberón},
  year = {2018},
  eprint = {1706.03640},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1706.03640},
  note = {Bull. London Math. Soc. 50 (1), 108–123.}
}