@misc{indiciaea8f13a632c85,
  title = {Divisor Class Groups on Algebraic Varieties.},
  author = {K Kodaira and D C Spencer},
  year = {1953},
  doi = {10.1073/pnas.39.8.872},
  url = {https://pubmed.ncbi.nlm.nih.gov/16589346/},
  note = {Source identifier: 16589346}
}