@misc{indiciaeb26b22b66a58,
  title = {Cyclicly Connected Continuous Curves.},
  author = {G T Whyburn},
  year = {1927},
  doi = {10.1073/pnas.13.2.31},
  url = {https://pubmed.ncbi.nlm.nih.gov/16577033/},
  note = {Source identifier: 16577033}
}