@misc{indiciae4cbb60315b80,
  title = {Electron microscopy of DNA conformations in spinach chloroplasts},
  author = {Fernandez-Moran, H. and Woodcock, C. L. F.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690025759},
  note = {Source identifier: 19690025759}
}