@misc{indiciaeb68973239db1,
  title = {Mass spectrometry in structural and stereochemical problems. CLXXV},
  author = {Brown, C. A. and Djerassi, C.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700053687},
  note = {Source identifier: 19700053687}
}