@techreport{pocu,
  title = "Profunctor Optics, a Categorical Update",
  author = "Bryce Clarke and Derek Elkins and Jeremy Gibbons and Fosco Loregian and Bartosz Milewski and Emily Pillmore and Mario Román",
  year = "2020",
  howpublished = "arXiv",
  month = "January",
  number = "2001.07488",
  url = "https://arxiv.org/abs/2001.07488",
}