@misc{indiciaea47c41876f54,
  title = {New compounds: Steroidal spiroethers.},
  author = {B Singh and R G Christiansen},
  year = {1971},
  doi = {10.1002/jps.2600600340},
  url = {https://pubmed.ncbi.nlm.nih.gov/5572141/},
  note = {Source identifier: 5572141}
}