@misc{indiciaeaf5a64e5deda,
  title = {6,6'-Dithiobispurinyl nucleosides.},
  author = {F Keller and J E Bunker},
  year = {1969},
  doi = {10.1021/jm00306a043},
  url = {https://pubmed.ncbi.nlm.nih.gov/5351467/},
  note = {Source identifier: 5351467}
}