@misc{indiciae8406f134f18a,
  title = {On structures.},
  author = {A Applegarth},
  year = {1989},
  doi = {10.1177/000306518903700411},
  url = {https://pubmed.ncbi.nlm.nih.gov/2698898/},
  note = {Source identifier: 2698898}
}