@misc{indiciaea4c3b391a12a,
  title = {Global constant-alpha force-free magnetic fields and coronal structures},
  author = {Nakagawa, Y. and Wu, S. T. and Tandberg-Hanssen, E.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780066821},
  note = {Source identifier: 19780066821}
}