@misc{indiciae3cf9c357fb17,
  title = {Coronal structures},
  author = {Curtis, G. W. and Dunn, R. B. and Orrall, F. Q.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19760066656},
  note = {Source identifier: 19760066656}
}