@misc{indiciaee5efb6e1acff,
  title = {Coronal hole evolution by sudden large scale changes},
  author = {Nolte, J. T. and Gerassimenko, M. and Krieger, A. S. and Solodyna, C. V.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780047277},
  note = {Source identifier: 19780047277}
}