@misc{indiciaeaa19fc621711,
  title = {Thin-layer chromatography of 2-substituted fluorenes.},
  author = {R Ikan and I Kirson and E D Bergmann},
  year = {1965},
  doi = {10.1016/s0021-9673(01)80411-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4284604/},
  note = {Source identifier: 4284604}
}