@misc{indiciae2019d74919a3,
  title = {Architectural barriers.},
  author = {R P Levoy},
  year = {1974},
  doi = {10.7547/87507315-64-11-906},
  url = {https://pubmed.ncbi.nlm.nih.gov/4280400/},
  note = {Source identifier: 4280400}
}