@misc{indiciaef472b1d12da6,
  title = {13C NMR spectral characterization of epimeric rotenone and some related tetrahydrobenzopyranofurobenzopyranones},
  author = {S. L. Abidi and M.S. Abidi},
  year = {2009},
  doi = {10.1002/jhet.5570200649},
  url = {https://pubs.usgs.gov/publication/70006651},
  note = {Source identifier: 70006651}
}