@article{Held:2010:UBA,
  doi = {10.1145/1731047.1731057},
  title = {Using Blur to Affect Perceived Distance and Size},
  journal = {ACM Transactions on Graphics},
  author = {Robert T. Held and Emily A. Cooper and James F. O'Brien and Martin S. Banks},
  number = 2,
  month = mar,
  volume = 29,
  year = 2010,
  pages = {19:1--16},
  url = {https://objf.ai/papers/Held-UBA-2010-03/},
}