@misc{indiciae0e68071c6a16,
  title = {A new reversible figure.},
  author = {J Gips},
  year = {1972},
  doi = {10.2466/pms.1972.34.1.306},
  url = {https://pubmed.ncbi.nlm.nih.gov/5062394/},
  note = {Source identifier: 5062394}
}