@misc{indiciae4321291fb813,
  title = {Concerning Certain Types of Continuous Curves.},
  author = {G T Whyburn},
  year = {1926},
  doi = {10.1073/pnas.12.12.761},
  url = {https://pubmed.ncbi.nlm.nih.gov/16587152/},
  note = {Source identifier: 16587152}
}