@misc{indiciae86e9ea7dffa7,
  title = {FUNCTION RINGS ON THE CIRCLE.},
  author = {J Wermer},
  year = {1957},
  doi = {10.1073/pnas.43.1.173},
  url = {https://pubmed.ncbi.nlm.nih.gov/16589994/},
  note = {Source identifier: 16589994}
}