@misc{indiciae4bb38a9f674a,
  title = {On General Manifolds.},
  author = {E Cech},
  year = {1936},
  doi = {10.1073/pnas.22.2.110},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588052/},
  note = {Source identifier: 16588052}
}