@misc{indiciaef8c9e9571d9f,
  title = {Physical objects as bidirectional user interface elements.},
  author = {Dan Rosenfeld and Michael Zawadzki and Jeremi Sudol and Ken Perlin},
  doi = {10.1109/mcg.2004.1255808},
  url = {https://pubmed.ncbi.nlm.nih.gov/15384667/},
  note = {Source identifier: 15384667}
}