@misc{indiciaebd8eaafa9988,
  title = {Electron microscopy of thin-sectioned Spirostomum.},
  author = {H E FINLEY},
  year = {1951},
  doi = {10.1126/science.113.2935.362},
  url = {https://pubmed.ncbi.nlm.nih.gov/14817304/},
  note = {Source identifier: 14817304}
}